Dioptase — Geoscience Research Institute

Skip to Content

GRI Home

Collections Home

GRI Home

Collections Home

GRI Home

Collections Home

Dioptase

Trigonal Cyclosilicate

Cu₆Si₆O₁₈.6H₂O

Amethyst

Schorl

The Geoscience Research Institute - Collections

GRI Website

Home Page
Videos
Articles

Further Resources

Books
GRI—FAQ
Photo Galleries