Why Nostr? What is Njump?
2024-06-30 23:09:57
in reply to

Libertas Primordium on Nostr: It's a very dark purple/reddish mineral with high hardness but it can fracture ...

It's a very dark purple/reddish mineral with high hardness but it can fracture somewhat easily. It's not great for jewelry but industrially it's used as an abrasive.
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npub1p5ryszcvdca78jdp5ewhu67zpyfz042m7nrha6mqx7a8wakrqrkqre5ksj