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.

Mahogany Obsidian Egg

The Crystal and Mineral Vault

Mahogany Obsidian: What Does It Have in Common With Mars?

by Laura Konst
Mahogany Obsidian is a variety of volcanic glass distinguished by the Hematite and Magnetite inclusions that give it its characteristic deep red-brown and black patterning. The same iron oxide that colours the surface of Mars red produces the warm tones in Mahogany Obsidian, while Magnetite creates the contrasting black zones. This guide explores the iron oxide chemistry, the formation geology, and where Mahogany Obsidian sits within the broader Obsidian family.
Black Obsidian Crystal

The Crystal and Mineral Vault

Black Obsidian: The Volcanic Glass Sharper Than Surgical Steel

by Laura Konst
Black Obsidian is not a mineral in the traditional sense — it is a volcanic glass, formed when silica-rich lava cools too rapidly to crystallise. From ancient trade routes to modern collections, this guide explores the geology, history, and physical properties of one of nature's most extraordinary amorphous materials.