Search: 671 results found for "iolite"

Iolite with Sunstone Tumblestones 20-40mm

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~~£7.50~~ £4.50

Pisces Zodiac Crystal Set

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£12.00

Indicolite Blue Tourmaline | Crystal | 45mm | Brazil

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£350.00

Indicolite Tourmaline with Quartz | 22mm | Brazil

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£35.00

Lepidolite in Citrine on Stand 11.5cm, Brazil Specimen Tali & Loz Crystals

Lepidolite in Citrine | 11.5cm | Brazil

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£45.00

Self Love Crystal Gift Set

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£14.00

Rainforest Rhyolite Tumblestones 20-30mm

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£4.00

Lepidolite Freeform 0.9kg

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£48.00

Solar Plexus Chakra Crystal Kit

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£10.00

Charoite Self Standing Slice 10cm, Russia Slices Tali & Loz Crystals

Charoite Self Standing Slice | Rough Edges | 10cm | Russia

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£98.00

Sugilite Rough Mineral | 1.81gr | South Africa

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£37.00

Charoite Slice | 14.8cm | Russia

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£165.00

Charoite Self Standing Slice 9.5cm, Russia Slices Tali & Loz Crystals

Charoite Self Standing Slice | Rough Edges | 9.5cm | Russia

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£98.00

Black Moonstone Sphere | 6.2cm | India

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£32.00

Sugilite Rough Mineral | 3.44gr | South Africa

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£69.00

Sugilite Rough Mineral | 2.57gr | South Africa

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£52.00

New Beginnings Crystal Gift Set

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£12.00

New Beginnings Crystal Gift Set

Whether you are starting a new business, moving house, planning on working out more or any other New Beginnings. These are the crystals to help support you or your loved with your adventures!

Crystals: Carnelian, Epidote, Moonstone, Green Calcite, Yellow Calcite, Labradorite

Carnelian

Carnelian Inspires new paths and will give you the motivation and courage to step into action. Meditating and setting intentions with Carnelian transmits positive energies throughout your body and aura which will bring you back to your core self, ready to start the new beginning.

Epidote

Epidote is like a trusted friend that is always there to lend an ear and shoulder when things seem to go sideways. It will help replenish your energy during busy times and leave you feeling recharged and refreshed.

Moonstone

Moonstone is often associated with feminine energy, new beginnings and healing, all of which are great tools to help you navigate unexplored paths. Don’t forget to take full advantage of the new moon energy to charge and elevate the power of your crystal.

Green Calcite

Green Calcite can help you deepen your connection to the earth element and feel more grounded and secure. An ideal choice when you want to prioritise personal growth and development.

Yellow Calcite

One of the best crystals for stress and anxiety, Yellow Calcite aids in learning and wisdom and promotes enthusiasm. Working with Yellow Calcite will allow you to reach within and activate your inner power so you can forge new paths.

Labradorite

‘'The Stone of Transformation & Change” Labradorite can release illusions and flawed perceptions that are holding you back. Labradorite is a great crystal to have around your house, it grounds your spiritual energies which boosts new and exciting energies in turn. This will help to develop your new goals and boost you to take the next steps to execute them.

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Eudialite | Polished Slice | 110mm | Russia

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£195.00

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How to Balance Your Upper Chakras with Blue Crystals

Crystals are powerful tools for restoring balance and alignment across the Chakra system. In this post, we’ll explore how to boost and balance your upper three Chakras — the Throat Chakra, Third Eye Chakra, and Crown Chakra — using blue crystals. While crystals come in many colours, blue stones are especially connected to these three Chakras. The Throat Chakra resonates with light blue energy, the Third Eye Chakra with deep indigo, and the Crown Chakra with violet and white. Blue acts as a bridge between these energy centres, promoting calm communication, spiritual clarity, and higher awareness. Let’s dive deeper into our favourite blue crystals for the upper Chakras! Celestite Celestite is one of our all-time favourites! This gorgeous pale blue crystal vibrates with peaceful, high-frequency energy that connects beautifully to all three upper Chakras. Use Celestite for Crown Chakra practices such as restful sleep, lucid dreaming, and astral travel. It also enhances Third Eye intuition, spiritual insight, and mental clarity during meditation. To deepen your connection, place a larger Celestite cluster near you while meditating or working. Keeping Celestite on your desk can also support your Throat Chakra, promoting calm communication, emotional balance, and mental focus. 👉 Shop Celestite Here Blue Tiger’s Eye Blue Tiger’s Eye, also known as Hawk’s Eye, is a deeply balancing stone that harmonizes masculine and feminine energies. It’s one of the best blue crystals for the Throat Chakra, enhancing communication, confidence, and truthful self-expression. Beyond the Throat, Blue Tiger’s Eye also influences the Third Eye and Crown Chakras, encouraging clear thinking and easing an overactive mind. Carry it with you throughout the day to stay grounded, centred, and communicative. 👉 Shop Blue Tiger’s Eye Here Iolite Iolite is often an underrated gem, but it’s incredibly powerful for Third Eye Chakra activation. This rich indigo stone strengthens intuition, inner vision, and creative insight — perfect for those seeking inspiration or spiritual growth. Iolite acts as both a booster and protector: it helps expand your awareness while shielding your energy field from unwanted influences. When your thoughts feel scattered or your focus drifts, meditating with Iolite can help realign your mind and purpose. It’s also excellent for unlocking creativity and “out-of-the-box” thinking when you’re stuck on a project. 👉 Shop Iolite Here Blue Kyanite Blue Kyanite is a high-vibration crystal known for instantly aligning and refreshing all Chakras, especially the upper three. It’s an ideal stone to place under your pillow for relaxed sleep and vivid dream recall, helping you understand the deeper messages in your dreams. When meditating, placing Blue Kyanite on your Third Eye Chakra enhances spiritual insight, psychic awareness, and intuitive communication. Its pure energy flow also connects to the Crown Chakra, strengthening your link to higher consciousness and divine wisdom. 👉 Shop Blue Kyanite Here Blue Calcite Blue Calcite is like a soft, soothing blanket for your energy field. This gentle crystal provides emotional protection and comfort, particularly when your mind feels overwhelmed or scattered. Most closely connected to the Throat Chakra, Blue Calcite encourages calm communication and the confidence to speak your truth. It also clears stagnant energy in the upper Chakras, making it perfect for relaxation and mental clarity. During meditation, Blue Calcite helps refresh your energy and restore peace. 👉 Shop Blue Calcite Here Conclusion Blue crystals are wonderful allies for healing and balancing your upper three Chakras — the Throat, Third Eye, and Crown. Their energy flows smoothly between these centres, promoting spiritual awareness, mental clarity, peaceful communication, and deep rest. Whether you’re seeking better sleep, dream recall, intuitive development, or energetic balance, incorporating blue crystals into your daily practice can elevate your vibration and restore harmony. Love, Laura Related Reading Best Crystals for Self Love Five of Our Favourite Purple Crystals Moldavite: A Life Changing stone you need to buy Best Crystals for Confidence Best Crystals EMF Protection The Seven Chakra Guides Best Crystals for Stress and Anxiety Zodiacs and Crystals The Power Of 12 Essential Crystals For Elevating Your Work Experience

on May 20 2023

Blog

Understanding Pleochroism: How Crystal Structure Creates Colour Change in Gemstones

When you rotate certain gemstones in light, something unexpected happens. The colour shifts. A stone that appears blue from one angle shows violet from another, and perhaps a reddish tone from a third. This is not a trick of the light or a surface effect. It is a genuine optical phenomenon built into the internal structure of the crystal itself, and it has a name: pleochroism. Understanding pleochroism adds a new dimension to how you see and appreciate gemstones. It explains why some minerals look different in photographs taken from different angles, why gemstone cutters make deliberate orientation choices before they begin, and why certain minerals are among the most visually dynamic in the natural world. What Pleochroism Is The word pleochroism comes from the Greek roots for more and colours, and it describes precisely what it sounds like: the ability of a gemstone to display different colours when light passes through it along different directions. This happens because of the way light interacts with the internal atomic structure of the crystal. In certain minerals, the crystal lattice is arranged so that light travelling in different directions through the stone encounters different electronic environments. Those different environments absorb different wavelengths of light selectively, and the colour you perceive depends on which wavelengths reach your eye. Change the direction light travels through the crystal, and you change which wavelengths are absorbed, and therefore which colour you see. Why It Only Happens in Certain Minerals Pleochroism is only possible in anisotropic minerals, those whose internal structure is not the same in all directions. When light enters an anisotropic crystal it behaves differently depending on which direction it is travelling, a property known as double refraction or birefringence. Isotropic minerals, which include all minerals crystallising in the cubic system such as Garnet, Spinel, and Diamond, have a perfectly uniform internal structure in every direction. Light passing through them encounters the same environment regardless of angle, so the colour cannot vary with orientation. These minerals cannot display pleochroism. Minerals crystallising in the tetragonal, hexagonal, trigonal, orthorhombic, monoclinic, and triclinic systems are all anisotropic to varying degrees, and many of them display pleochroism as a result. Dichroism and Trichroism Pleochroism takes two forms depending on the crystal system of the mineral. Dichroism describes the display of two distinct colours in two different crystallographic directions. It is seen in minerals belonging to the tetragonal, hexagonal, and trigonal crystal systems, which have one axis of symmetry that is optically distinct from the others. Tourmaline and Kunzite are well-known dichroic minerals. Trichroism describes the display of three distinct colours in three different crystallographic directions. It occurs in minerals belonging to the orthorhombic, monoclinic, and triclinic systems, where all three principal axes are optically distinct from one another. Tanzanite, Iolite, and Andalusite are among the most celebrated trichroic minerals, each capable of showing three clearly different colours in the same crystal. The strength of the effect varies considerably between minerals and even between individual specimens. In some stones it is subtle, appearing as a gentle shift in tone or saturation. In others it is dramatic enough to be immediately visible to the naked eye when the crystal is slowly rotated in natural light. How to Observe Pleochroism The simplest way to observe pleochroism is to hold a transparent or translucent specimen in natural or soft diffused daylight and rotate it slowly, watching for shifts in hue, saturation, or tone. Harsh directional artificial lighting can mask the effect, so daylight or soft indirect light tends to give the clearest results. A dichroscope, a simple optical instrument available from most gemological suppliers, splits the two pleochroic colours of a stone and displays them side by side, making the effect immediately visible and allowing precise identification of the colours present along each axis. This is a standard tool in gemological identification work and is particularly useful where the naked eye effect is subtle or where the stone is too dark or too opaque to show the colour shift clearly under normal observation. In faceted gemstones, the pleochroism is usually less obvious than in rough crystals because the multiple facets present light at many angles simultaneously, blending the pleochroic colours. Rough or simply polished material often demonstrates the effect most clearly. Transparency, Quality, and Whether You Can Actually See It This is worth stating clearly because it is one of the most common sources of confusion when people first encounter pleochroic minerals: pleochroism is only visible if the stone is sufficiently transparent to allow light to pass through it. Opacity blocks the optical interaction entirely. A deeply included, opaque, or very dark specimen may be genuinely pleochroic as a mineral species while showing no visible colour change at all in practice. Iolite is a perfect example. Gem-quality transparent Iolite displays one of the most dramatic trichroic effects in mineralogy, shifting between deep violet-blue, pale yellow, and near-colourless as it is rotated. But dense, heavily included, or opaque Iolite shows none of this. The pleochroism is still a property of the mineral, but without sufficient light transmission it simply cannot express itself. The same principle applies across all pleochroic minerals. A pale, included Tanzanite may show very little colour shift despite being the same mineral species as a vivid, transparent gem-quality stone where the trichroism is immediately dramatic. Translucency helps but full transparency gives the most visible result. This is why pleochroism tends to be discussed primarily in the context of gem-quality material, and why in a collection of mixed quality specimens, only some pieces will demonstrate the effect visibly to the naked eye. A dichroscope can sometimes reveal pleochroism in stones too dark or included for the naked eye to detect it, but even that has limits: genuinely opaque material will not show the effect under any observation method. As a general guide to what to expect by eye across the most commonly collected pleochroic minerals: Clearly visible to the naked eye in good quality material: Tanzanite, Iolite, Andalusite, Alexandrite, Kunzite, Cordierite, strong Tourmaline varieties particularly Indicolite and Paraiba type, Epidote. Visible to the naked eye with attention in decent material, easier with a dichroscope: Aquamarine, Ruby, Sapphire, Emerald, Peridot, Kyanite, Spodumene varieties, Zircon in blue and green colours. Typically requires a dichroscope or is too subtle for reliable naked eye observation: Many Garnet varieties, pale or included Tourmaline, most Calcite varieties, weakly pleochroic specimens of otherwise strongly pleochroic species. Why It Matters for Collectors and Gem Cutters For collectors, pleochroism is part of the optical character of a mineral, as intrinsic to its identity as its hardness or its specific gravity. Minerals like Tanzanite, Iolite, and Andalusite are appreciated specifically because of the colour complexity their pleochroism creates, and understanding the phenomenon allows you to observe and appreciate it deliberately rather than noticing it by accident. For gem cutters, pleochroism is a practical consideration that directly influences cutting decisions. Because the colour of a pleochroic stone varies with orientation, the direction in which the cutter orients the crystal relative to the table facet determines which pleochroic colour will dominate in the finished stone when viewed face-up. In Tanzanite, for example, most cutters orient the stone to show the blue-violet axis face-up and minimise the less desirable reddish-brown axis. In Alexandrite and colour-change minerals, the orientation is chosen to maximise the drama of the colour shift. These are deliberate scientific decisions, not aesthetic ones. Pleochroism as a Diagnostic Tool Beyond its visual interest, pleochroism is a useful diagnostic property in gemological identification. Different minerals display characteristic pleochroic colour combinations that can help distinguish between visually similar stones. Iolite, for example, shows blue, pale yellow, and colourless along its three axes, a combination distinctive enough to make identification straightforward in rough material. Andalusite shows green, red-brown, and yellow-green. Tanzanite shows blue, violet, and red-brown. These pleochroic fingerprints, combined with other physical properties, allow gemologists to identify minerals with confidence even without laboratory equipment. Summary Pleochroism is a natural optical property that reveals how light and crystal structure interact within anisotropic gemstones. It is the reason certain minerals appear to change colour as they are rotated, and it reflects the directional variation in light absorption built into the crystal lattice itself. Whether subtle or dramatic, dichroic or trichroic, pleochroism adds a layer of visual and scientific depth to the minerals that display it, making them dynamic rather than static objects whose full character only reveals itself through movement and observation. 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 Tanzanite: The Gemstone Discovered in 1967 That May Run Out Within Your Lifetime Blue Kyanite: One Mineral, Two Hardnesses, and a Billion Year Story Black Tourmaline: The Mineral That Generates Its Own Electricity Rubellite Tourmaline: A Journey to Emotional Equilibrium Aquamarine: A Gem of Tranquil Beauty and Mystical Heritage Azurite: The Mineral That Coloured Medieval Paintings Chrysoprase: The Nickel-Coloured Chalcedony That Has Decorated Palaces and Cathedrals for Three Thousand Years Malachite: From Ancient Egyptian Cosmetics to the Winter Palace

on Apr 21 2026

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