Vote for your favorite mineral in #MinCup26! - Azurite vs. Smithsonite
It's carbonate-vs-carbonate to kick off Mineral Cup 2026 with copper-rich Azurite against zinc-rich Smithsonite.
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Brian Kosnar's mindat.org home page

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Richard A. Kosnar Holding the Great Phosphophyllite in 1977

About Brian Kosnar

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Registered member since 23rd Nov 2006

Brian Kosnar has uploaded:
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Latest message posted:24th Jun 2025

 
 
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