Search: 188 results found for "ocean jasper"

Ocean Jasper Sphere 8cm

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£75.00

Ocean Jasper Egg | 6.5cm | Madagascar

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£65.00

Ocean Jasper Statement Sphere 3.2KG spheres Tali & Loz Crystals

Ocean Jasper Statement Sphere | 3.2kg | Madagascar

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£375.00

Ocean Jasper Palmstone | 4.2cm | Madagascar

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£32.00

Ocean Jasper Tower | 118mm | Madagascar

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£75.00

Ocean Jasper Palmstone | 6.7cm | Madagascar

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£45.00

Ocean Jasper Palmstone | 5.2cm | Madagascar

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£42.00

Ocean Jasper Palmstone | 7.3cm | Madagascar

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£48.00

Ocean Jasper Palmstone | 5.8cm | Madagascar

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£42.00

Ocean Jasper Palmstone | 6.2cm | Madagascar

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£48.00

Ocean Jasper Palmstone | 4.3cm | Madagascar

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£32.00

Ocean Jasper Palmstone | 4.7cm | Madagascar

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£32.00

Ocean Jasper Palmstone | 5.4cm | Madagascar

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£42.00

Ocean Jasper Palmstone | 6.3cm | Madagascar

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£48.00

Ocean Jasper Palmstone | 6cm | Madagascar

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£45.00

Ocean Jasper Tumblestones 10-20mm

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£4.00

Ocean Jasper Twisted Wand | 120mm | Old Collection

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£45.00

Ocean Jasper Wand | 121mm | Old Collection

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£45.00

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Ocean Jasper: Nobody Painted These Circles. Geology Did. Here Is How.

What is Ocean Jasper? Mineral Group: Silicate | Category: Chalcedony, Orbicular Jasper Variety | Formula: SiO₂ with iron oxide and other mineral impurities | Hardness: 6.5 – 7 (Mohs) Ocean Jasper is a trade name for a distinctive orbicular Jasper variety found exclusively along the northwestern coastline of Madagascar, whose characteristic rounded orb-like patterns in a multicolour matrix have made it one of the most visually complex and widely collected Chalcedony varieties available. The orbicular patterns — circular or oval structures of varying size distributed through the host material — give each specimen an appearance unlike any other Jasper variety, with the specific combination of colours, orb sizes, and background matrix varying between specimens to a degree that makes every piece unique. The material was known in Madagascar for some time but was formally introduced to the international collector and gem market in the late 1990s when a deposit was rediscovered along the remote Marovato coastline, accessible only by boat during low tide, which added to the mystique surrounding its initial commercial availability. The original coastal deposit has since been largely exhausted, and subsequent deposits have been found inland and along other parts of the northwestern coastal region, each producing material with slightly different character. The geographic restriction of all known deposits to this specific region of Madagascar makes Ocean Jasper a single-country mineral in the same way that Larimar is a single-country mineral, and the finite nature of the known deposits has sustained collector interest and value. Ocean Jasper belongs to the same fundamental mineral family as Agate, Carnelian, Chalcedony, and other microcrystalline silica varieties. All share the same SiO₂ chemistry and cryptocrystalline Quartz structure. What distinguishes Ocean Jasper is the specific orbicular growth habit and the multicolour palette of its trace element impurities, neither of which is replicated in Chalcedony from other geological settings. Formation and Geological Context Ocean Jasper forms through the silicification of volcanic material in a coastal geological environment, and the orbicular patterns that define it develop through a specific crystal growth mechanism worth understanding clearly. The starting point is volcanic rock — specifically rhyolite and rhyolitic tuff in the case of the Marovato coastal deposits. These are silica-rich volcanic rocks formed from viscous felsic lava or volcanic ash, and they contain abundant pore spaces and fractures through which silica-rich groundwater can percolate. As this silica-saturated water moves slowly through the rock, it deposits microcrystalline Chalcedony progressively, converting the original volcanic material into Jasper over geological time. The orbicular patterns develop through a process called spherulitic crystallisation. Rather than depositing silica in flat layers as happens in Agate formation, the silica in Ocean Jasper nucleates from individual points and grows outward radially in all directions simultaneously, producing spherical or oval structures. This is essentially the same growth process that produces the grape-like formations in Grape Agate and the flower-like inclusions in Flower Agate, but operating at a different scale and in a different matrix to produce larger, more defined circular forms. Each individual orb began as a single nucleation point — a site where silica first began to crystallise — and then grew outward uniformly as long as silica was available in the surrounding fluid. The size of the orbs reflects how long each nucleation centre had to grow and how much silica was available: larger orbs had more time or more silica; smaller orbs were more constrained. Where orbs grew close together they eventually pressed against each other, producing the packed, interlocking appearance common in denser Ocean Jasper material. The colour of the orbs and the surrounding matrix reflects the trace element chemistry of the silica-bearing fluid at different stages of deposition. Green tones come from iron in combination with chlorite or other iron-bearing silicate minerals. Red and yellow tones come from Hematite and Goethite iron oxides. White and cream zones represent purer silica. Pink tones reflect manganese impurities. The specific combination in any given specimen reflects the local geochemistry of its formation environment, which is why the colour range varies so dramatically between different Ocean Jasper pieces and different deposits. The coastal location of the original Marovato deposit adds an interesting dimension to the formation story. The rocks exposed along this coastline have been subjected to both the silicification from groundwater above and the influence of the marine environment at the shoreline, and the erosion of the deposit by the sea means that collecting at the original site required working with the tides — cutting loose blocks of the coastal rock at low tide before the sea returned. Key Physical Properties Property Detail Mineral Group Silicate Category Chalcedony, Orbicular Jasper Crystal System Trigonal (cryptocrystalline) Hardness 6.5 – 7 Mohs Specific Gravity 2.58 – 2.91 Refractive Index 1.533 – 1.554 Birefringence 0.009 Pleochroism None Lustre Waxy to vitreous Fracture Conchoidal Cleavage None Tenacity Brittle Transparency Opaque to translucent Colour Variable: green, yellow, white, pink, red, brown Streak White Formula SiO₂ with mineral impurities Safe to Cleanse in Water Yes The wide specific gravity range of 2.58 to 2.91 reflects the variation in iron oxide content between different colour zones and specimens. The absence of cleavage — shared across the Chalcedony family — means Ocean Jasper does not split preferentially in any direction and is considerably more resistant to impact damage than cleavage-bearing minerals of similar hardness, making it well suited to carving, polishing, and everyday use. The Orbicular Patterns: What They Actually Are The orbs that define Ocean Jasper are worth examining in detail because they are the geological feature most central to the material's identity and value, and understanding what they are physically adds scientific depth to their visual appeal. Each orb is a spherulite: a crystal aggregate that grew radially outward from a single nucleation centre. Within each spherulite, the silica crystals are oriented radially, pointing outward from the centre like spokes from a hub. This radial orientation is what gives many orbs a slightly different optical quality from the surrounding matrix when light catches them at different angles, contributing to the dimensional quality that makes polished Ocean Jasper so visually dynamic. The boundaries between orbs and matrix are not always sharp: in some material there is a gradual transition from the outer edge of one spherulite to the matrix before the next one begins, while in other material the orbs pack tightly against each other with minimal matrix between them. The degree of packing and the sharpness of orb boundaries varies between deposits and within the same deposit, producing material that ranges from loosely scattered orbs in a clearly defined matrix to densely packed orb-on-orb material where the matrix is almost entirely absent. Within individual orbs, concentric colour zoning is sometimes visible: an inner core of one colour surrounded by one or more outer zones of different colours. These concentric zones record changes in the fluid chemistry during the growth of that individual spherulite, with each zone representing a period when the trace element availability in the surrounding fluid shifted slightly. A spherulite with multiple concentric colour zones is in effect a miniature version of the same banded deposition that produces Agate, operating at the scale of a single centimetre-scale orb rather than an entire cavity. Ocean Jasper and the Madagascar Mineral Heritage Madagascar is one of the most mineralogically significant countries in the world, producing an extraordinary range of gemstones and collector minerals from its geologically ancient and diverse rock sequences. Sapphire, Aquamarine, Tourmaline, Labradorite, and various zeolite and Chalcedony materials all come from Madagascar in significant quantities, and the island's position as a fragment of the ancient supercontinent Gondwana gives it a geological history spanning billions of years. Ocean Jasper sits within this context as a distinctively Madagascan material: found nowhere else in the world, formed in the specific volcanic sequences of the island's northwestern coast, and collected under conditions unique to that specific coastal environment. The finite nature of the known deposits means that Ocean Jasper is a material with a foreseeable limit to its accessible supply — not in the imminent commercial sense, but in the longer geological sense that the known deposits are being progressively worked and no new deposits of equivalent quality have been found. This finite supply dynamic is part of what has made Ocean Jasper a sustained focus of collector interest since its introduction to the market and has produced a tiered commercial structure where older material from the original Marovato coastal deposit is distinguished from — and typically valued above — material from later inland discoveries. Ocean Jasper Within the Orbicular Jasper Family Ocean Jasper belongs to a category of orbicular minerals that share the spherulitic growth mechanism but occur in different geological settings and produce visually distinct material. Orbicular Jasper from other localities — sometimes called Leopard Skin Jasper or Orbicular Granite depending on the specific composition — produces similar rounded patterns in different colour combinations reflecting their different mineralogy and formation environments. True orbicular granites, in which the orbs are feldspar-dominated rather than silica-dominated, produce the pattern through a different mechanism than the spherulitic Chalcedony of Ocean Jasper, and the resulting material has different physical properties. Flower Agate from Madagascar, discussed in our dedicated guide, represents a smaller-scale expression of related spherulitic silica growth in the same broad geological region, and comparing the two materials illustrates how the same fundamental growth mechanism operating at different scales and under slightly different conditions produces visually very different results. Grape Agate, from the Mamuju region of Indonesia, represents botryoidal rather than spherulitic growth — a related but distinct process producing the rounded grape-like surface clusters rather than the internal orbs of Ocean Jasper. Care and Handling Ocean Jasper is one of the more robust Chalcedony varieties available for everyday use. Its hardness of 6.5 to 7, combined with the absence of cleavage, makes it resistant to both scratching and impact. It is safe to cleanse in water and stable under normal handling conditions. Clean with water and a soft cloth or mild soapy water, rinse thoroughly, and dry completely. The iron oxide, manganese, and silicate-based colouration is chemically stable and does not fade under normal light or temperature conditions. Store away from harder minerals to protect polished surfaces, and avoid sustained direct sunlight as a long-term precaution for fine coloured material. Traditional Associations While this guide focuses on the science of Ocean Jasper, it is valued in spiritual and mindful practices for its associations with harmony, nurturing, joy, and the natural rhythms of the Earth. Its visual connection to ocean scenes and natural landscapes has made it a natural choice for practices focused on emotional balance, inner peace, and connection to nature. In chakra work it is associated with the Heart and Solar Plexus Chakras. These associations are rooted in cultural and traditional use rather than scientific properties. Summary Ocean Jasper is an orbicular Chalcedony from the northwestern coast of Madagascar whose characteristic spherulitic orb patterns develop through radial outward crystal growth from individual nucleation points, producing circular structures whose colours record the trace element chemistry of the silica-bearing fluids at their formation. Found only in Madagascar and from a limited number of coastal and inland deposits, it is one of the more geographically specific Chalcedony varieties in the collector market, and the visual complexity of its multicolour orbicular patterns makes it among the most individually distinctive minerals available at any price point. Durable, water-safe, and visually unlike almost anything else in the Chalcedony family, every piece offers a different composition of the same fundamental geological story. Browse our full Ocean Jasper collection to find polished slabs, spheres, palm stones, and raw specimens. As always, our inbox and DMs are open if you would like guidance or simply wish to explore further. Contact us Love, Laura Further Reading Grape Agate: Named After Fruit, Not Quite an Agate, Entirely Fascinating Flower Agate: Madagascar Grew These Flowers Over Millions of Years and Nobody Painted a Single One Red Jasper: Mineral Profile and Geological Overview What Crystal Do I Need? Advanced Crystal Choosing for Crystal Lovers

on Jan 23 2025

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Picture Jasper: Nature's Geological Landscape Trapped in Stone

What is Picture Jasper? Mineral Group: Silicate | Category: Chalcedony, Jasper Variety | Formula: SiO₂ with iron oxide and other impurities | Hardness: 6.5 – 7 (Mohs) Picture Jasper is an opaque, fine-grained variety of Jasper, itself a form of Chalcedony, the cryptocrystalline silica mineral in which individual Quartz crystals are too small to be seen without a microscope. It is distinguished from other Jasper varieties by its distinctive landscape-like patterning: swirling bands, layered horizons, and flowing forms in combinations of brown, tan, cream, black, and occasionally blue-grey that genuinely resemble aerial views of desert terrain, canyon landscapes, or abstract geological maps. These patterns are not painted or artificially induced: they are the direct visual record of the layered silica deposition and iron oxide chemistry that produced the stone over millions of years. The name Picture Jasper, sometimes written Picasso Jasper or Landscape Jasper in different market contexts, refers directly to this pictorial quality. Each specimen is unique: the specific pattern of any given piece reflects the particular sequence of silica deposition events, the local chemistry of the mineralising fluids, and the geological history of the exact location where it formed. No two pieces are identical, which is part of what has made Picture Jasper consistently popular among collectors and those drawn to the aesthetic qualities of natural stone. Jasper as a mineral category belongs within the broad Chalcedony family, sharing the same fundamental SiO₂ chemistry as Agate, Carnelian, and Chrysoprase, but distinguished by its opacity, which results from the higher proportion of fine-grained inclusions and impurities that give Jasper its colour and prevent light from passing through. Formation and Geological Context Picture Jasper forms through the deposition of silica-rich fluids in sedimentary environments, typically within layered sequences of volcanic ash, fine sediment, or existing rock where silica-saturated groundwater percolates slowly through the available pore spaces and fractures. As these fluids move through the rock they deposit silica progressively, incorporating trace elements and mineral particles from the surrounding material as they go. The layered, banded character of Picture Jasper reflects the episodic nature of this deposition: each layer represents a distinct period of silica precipitation during which the fluid chemistry, temperature, and available impurities differed slightly from the previous episode. Iron oxides, primarily Hematite and Goethite, are the dominant colouring agents, producing the range of browns, reds, oranges, and yellows. Manganese oxides contribute darker brown and black tones. Organic material and clay minerals add further colour variation and contribute to the creamy tan and ivory tones seen in many specimens. The flowing, organic quality of Picture Jasper’s patterning, which distinguishes it from the more geometric banding of Agate, results from the movement of silica-bearing fluids through irregularly shaped spaces. Where Agate typically forms in rounded vesicles producing concentric rings, Picture Jasper often forms in more complex, irregular sedimentary or volcanic environments where fluid flow paths are less constrained, producing the sweeping, landscape-like forms that define the variety. The most significant commercial sources of Picture Jasper include the United States, particularly Idaho and Oregon, where some of the finest and most distinctively patterned material is found. South Africa, Australia, Brazil, and various localities across Africa and Asia also produce Picture Jasper, each with characteristic regional colour palettes and patterning styles reflecting their specific geological environments. Key Physical Properties Property Detail Mineral Group Silicate Category Chalcedony, Jasper Variety Crystal System Trigonal (cryptocrystalline) Hardness 6.5 – 7 Mohs Specific Gravity 2.50 – 2.90 Refractive Index 1.53 – 1.54 Birefringence None to very weak Pleochroism None Lustre Waxy to dull Fracture Conchoidal to uneven Cleavage None Tenacity Brittle Transparency Opaque Colour Brown, tan, cream, black, blue-grey Formula SiO₂ with iron oxide impurities Safe to Cleanse in Water Yes The opacity of Jasper distinguishes it physically from translucent Chalcedony varieties such as Agate and Carnelian, and results from the high proportion of fine-grained inclusions that scatter light rather than allowing it to pass through. The absence of cleavage, shared across the Chalcedony family, means Picture Jasper does not split preferentially in any direction and is considerably more resistant to impact damage than cleavage-bearing minerals of similar hardness. Combined with its hardness of 6.5 to 7 this makes it one of the more durable materials in a collection and well suited to carving, polishing, and everyday handling. The Landscape Patterns: Iron Oxide Chemistry and Fluid Flow The distinctive landscape-like patterning of Picture Jasper is the product of two interacting geological processes: the layered deposition of silica from slowly moving groundwater and the precipitation of iron oxide minerals within the silica matrix as fluid chemistry changes. Iron is the primary colouring agent across the Jasper family and in Picture Jasper its various compounds produce the full range of warm tones. Hematite, the anhydrous iron oxide Fe₂O₃, produces red to reddish-brown tones. Goethite, the hydrated iron oxide FeO(OH), produces yellow to brown tones. The relative proportions of these two phases, controlled by the oxidation conditions and water content of the environment during formation, determine whether any given zone of the stone is more red, more brown, or more yellow. Darker areas reflect higher concentrations of manganese oxides or organic material. The pale cream and ivory tones represent zones of relatively pure silica with minimal iron content. The flowing, horizon-like layering that gives Picture Jasper its landscape quality reflects the direction and speed of fluid movement during deposition. Slow, horizontally stratified fluid movement produces the parallel banding reminiscent of sedimentary rock strata. More complex flow patterns, where fluids moved through irregular channels or cavities, produce the swirling, organic forms that distinguish the finest Picture Jasper from more simply banded material. In some specimens dendritic manganese oxide inclusions add fine branching patterns that further enhance the landscape impression. Picture Jasper Within the Jasper and Chalcedony Family Jasper is one of the most varied and widely collected members of the Chalcedony family, and understanding Picture Jasper’s place within the broader group helps contextualise its specific characteristics. All Jasper is opaque Chalcedony, the opacity resulting from a higher proportion of fine-grained inclusions compared to translucent Chalcedony varieties. Within the Jasper category, different varieties are distinguished by their colour patterns and the specific geological environments in which they form. Red Jasper is coloured uniformly or with subtle variation by Hematite and is one of the most widely available Jasper varieties. Ocean Jasper is a spherulitic variety from Madagascar displaying rounded orb-like patterns in a range of colours. Kambaba Jasper is a dark green stromatolitic material from Madagascar and South Africa containing fossilised blue-green algae structures within the silica matrix. Leopardskin Jasper displays circular or spotted patterning in browns and creams. Picture Jasper sits within this family as the variety most explicitly valued for its landscape-like patterning, though the boundary between Picture Jasper and other banded or patterned Jasper varieties is a commercial rather than strictly mineralogical distinction. Material is typically labelled Picture Jasper where the patterning is sufficiently evocative of landscapes or pictorial scenes to warrant the name. Jasper in Human History Jasper has one of the longest documented histories of human use of any mineral, a consequence of its combination of hardness, toughness, widespread availability, and the visual appeal of its many colour varieties. Archaeological evidence places Jasper use in toolmaking and ornamentation deep into prehistory, with carved and polished Jasper objects found in sites across Europe, Asia, Africa, and the Americas. The ancient Egyptians used Jasper in jewellery and amulets. The Greeks and Romans carved it into seals, cameos, and decorative objects. In the medieval period it was among the stones listed in lapidaries, the mineral and gemstone reference texts of the era, and attributed with various protective and healing properties. The name Jasper derives from the Greek iaspis, itself borrowed from a Semitic root, and the mineral is referenced in multiple ancient texts including the Bible, where it appears in descriptions of the foundations of the heavenly Jerusalem in the Book of Revelation. This long textual and cultural history reflects how consistently Jasper’s combination of visual variety, durability, and workability has made it significant to human cultures across time and geography. Care and Handling Picture Jasper is one of the more straightforward minerals to care for. Its hardness of 6.5 to 7, combined with the absence of cleavage and the fine, dense microcrystalline texture of Jasper, makes it resistant to both scratching and impact. It is safe to cleanse in water and stable under normal handling and display conditions. Clean with water and a soft cloth or mild soapy water, rinse thoroughly, and dry completely. Avoid harsh chemical cleaners. The iron oxide colouration of Picture Jasper is chemically stable and does not fade under normal light or temperature conditions, making it one of the lower-maintenance minerals in a collection. Traditional Associations While this guide focuses on the science of Picture Jasper, it is valued in spiritual and mindful practices for its associations with grounding, stability, creativity, and connection to the Earth. In chakra work it is connected to the Root, Sacral, and Solar Plexus Chakras, reflecting its earthy tones and the grounding energy attributed to it. These associations are rooted in cultural and traditional use rather than scientific properties. For a full exploration of how to work with Picture Jasper spiritually, see our dedicated spiritual guide. Summary Picture Jasper is an opaque Chalcedony whose landscape-like patterning is the direct visual record of layered silica deposition and iron oxide chemistry in sedimentary geological environments. Its warm palette of browns, tans, creams, and blacks reflects the specific iron compounds present during formation, while its flowing, organic patterns record the movement of silica-bearing fluids through complex geological spaces over millions of years. Durable, water-safe, and visually unique in every specimen, it is one of the more accessible and consistently rewarding members of the Jasper and Chalcedony family for collectors at any level of experience. Browse our full Picture Jasper collection to find raw specimens, polished slabs, and carved pieces. As always, our inbox and DMs are open if you would like guidance or simply wish to explore further. Contact us Love, Laura Further Reading Agate: Every Band Tells a Story Jasper Family Guides Chalcedony Family Guides Hematite Mineral Guide Fancy Jasper Mineral Guide Hollandite: How a Rare Manganese Mineral Creates Natural Star Patterns in Quartz Permineralized Wood: The Fossil That Still Looks Like a Tree A Beginner’s Guide to Mineral Physical Properties A Beginner’s Guide to Mineral Chemical Properties and Classification

on Mar 09 2025

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