A Few Gems

Click to activate, click-drag to position, wheel to zoom, right-click for menu.

beryl corundum tourmaline garnet SiO2 diamond graphite topaz fluorite

Beryl

Formula: Be₃Al₂Si₆O₁₈

Common Gems:

• Emerald (trace Cr III)
• Aquamarine (trace Fe II and Fe III)
• Yellow Beryl (trace Fe III)
• Morganite (trace Mn II)
• Red beryl (trace Mn III)