The Crystal and Mineral Vault


Welcome to our Crystal and Mineral Knowledge Hub, where science tradition and mindful practice come together. This space is dedicated to exploring the formation properties and cultural associations of crystals and minerals through Mineral Vault profiles and practical guides designed to encourage informed discovery and deeper understanding.

Go to our Mineral Guides for science based knowledge and the 'How to Guides' for spiritual practices.

Hematoid Quartz Crystal

The Crystal and Mineral Vault

Hematoid Quartz: Clear Quartz That Ran Into Iron and Never Looked Back

by Laura Konst
Hematoid Quartz is Quartz transformed by iron. Where Clear Quartz forms in silica-rich fluids, Hematoid Quartz develops where those same environments are rich in iron oxide, producing the vivid reds, oranges, and ambers that make this variety immediately distinctive. Its colouration is not a surface treatment but a geological record of the iron-rich conditions in which it grew.
Herkimer Diamonds

The Crystal and Mineral Vault

Herkimer Diamond: Not a Diamond, but Arguably More Interesting

by Laura Konst
Herkimer Diamonds are not diamonds at all, but they are remarkable. These naturally double-terminated Quartz crystals formed 500 million years ago within cavities in an ancient sedimentary rock in upstate New York, growing freely in solution until they developed their characteristic geometric perfection. Their anthraxolite and fluid inclusions preserve a direct chemical record of the hydrothermal environment in which they grew, making them as scientifically fascinating as they are visually striking.
Angelite Crystal

The Crystal and Mineral Vault

Angelite: How Vanished Oceans Produced a Pale Blue Mineral

by Laura Konst
Angelite is the collector name for a fine-grained blue variety of Anhydrite, a calcium sulphate mineral formed through the evaporation of ancient seas. Soft, delicate, and water-sensitive, it carries within its pale blue surface a geological record of environments that disappeared hundreds of millions of years ago, making it as scientifically fascinating as it is visually distinctive.
Amber Specimen

The Crystal and Mineral Vault

Amber: How a Sticky Resin Became a 50 Million Year Old Time Capsule

by Laura Konst
Amber is unlike any other gemstone. Formed from the fossilised resin of trees that lived tens of millions of years ago, it is an organic archive as much as it is a gemstone, capable of preserving ancient insects, plants, and even feathered dinosaur material with extraordinary detail. Its warm golden tones and remarkable scientific significance make it one of the most extraordinary materials the natural world has produced.
Charoite Cube on Slice

The Crystal and Mineral Vault

Charoite: The Purple Mineral That Exists Nowhere Else on Earth

by Laura Konst
Charoite is one of the rarest minerals on Earth, found in a single location along the Chara River in Siberia, Russia. Formed through the metasomatic alteration of limestone by alkaline fluids, its signature swirling violet and lavender patterns are the result of a complex intergrowth of minerals that occurred deep within the Earth's crust. There is truly nothing else quite like it.
Black Tourmaline Specimen

The Crystal and Mineral Vault

Black Tourmaline: The Mineral That Generates Its Own Electricity

by Laura Konst
Black Tourmaline, known mineralogically as Schorl, is one of the most common black minerals on Earth and a defining species of the tourmaline group. Formed within boron-rich pegmatites and metamorphic rocks, its deep opaque colour, complex chemistry, and remarkable piezoelectric properties make it one of the most mineralogically fascinating crystals you can add to your collection.