Crystals & Stones

Rough diamond crystal; photo by Tõnu Pani, CC BY 4.0 — Roosters Peacock crystal guide
Diamond: The Stone of Endurance, Clarity & Lasting Commitment
Diamond is crystalline carbon, C, an isometric mineral ranked 10 on the Mohs scale and formed naturally at great depth in Earth's mantle; laboratory-grown material has the same basic composition... Read more...
Native copper mineral specimen; CC0 via Wikimedia Commons — Roosters Peacock crystal guide
Copper: The Stone of Conductivity, Vitality & Practical Connection
Native Copper is elemental Cu, an isometric, highly conductive and malleable mineral with a copper-red metallic surface that can tarnish dark or green. Explore its mineral science, ancient metalworking history,... Read more...
Bismuth hopper crystals; photo by Maxim Bilovitskiy, CC BY-SA 4.0 — Roosters Peacock crystal guide
Bismuth: The Stone of Transformation, Order & New Perspective
Bismuth is the elemental mineral Bi, a dense, soft, brittle metal whose colorful oxide films and geometric hopper crystals make it especially distinctive; many rainbow specimens sold today are laboratory-grown.... Read more...