Obsidian occurance, Milford, Beaver Co., Utah, USA
This page is currently not sponsored. Click here to sponsor this page.
List of minerals arranged by Dana 8th Edition classification
|Group 75 - TECTOSILICATES Si Tetrahedral Frameworks|
|Si Tetrahedral Frameworks - SiO2 with  coordinated Si|
2 entries listed. 1 valid mineral.
Kapple, William: Rockhounding Utah.