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

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

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Quartz: Mineral information, data and localities.

Is this green obsidian? Slag? Something else? : r/rockhounds

Everything You Need to Identify Rocks

Why are hardness and density important mineral classifications? - Quora

Learn about fine minerals & gems at the Wisdom Pocket Blog

At the Mineralogical Museum - The Reformed Journal Blog

Fluorescent Minerals, I have some Sodalita several locations in my collection but perhaps this is one of the most beautiful for his tenebrescent so dramatic after exposure

Rock Types

Found this Beauty in Southern Oregon today. Any ideas what it is? I'm thinking green jasper, but how about the white parts? : r/rockhounds