What this green mineral could be? it's harder than glass : r/rockhounds

Description

Obsidian Collecting at Glass Butte - Calipidder

The Firefly Guide to Minerals, Rocks and Gems: Hochleitner PhD, Dr. Rupert: 9780228102281: Books

The Firefly Guide to Minerals, Rocks and Gems: Hochleitner PhD, Dr. Rupert: 9780228102281: Books

A close look at antimony, stibnite, and stibiconite with comments on contemporary mineral collecting. — Exotica Esoterica

Another found in eastern idaho, no clue what it is : r/rockhounds

Danburite Moldavite Stone Siberian Blue Quartz Crystal Necklace Magician Stone Pendant A - Canada

Rockhounding near Delta, Utah for Topaz, Mahogany Obsidian & Sunstone - The Rolling RockhoundThe Rolling Rockhound

What this green mineral could be? it's harder than glass : r/rockhounds

Quartz: Mineral information, data and localities.

The façade of Newgrange - A short history: LAPC - bend branches

OD- Help Stunning blue-green rock : r/rockhounds