This is an unusual mineral my supplier obtained from an old collection. This is an 11.1 oz, 4.3” by 3.4” by 2.1” thin layer of artinite on serpentine matrix from Staten Island, NY. Artinite is a rare magnesium carbonate that occurs in botryoidal mounds of tiny, fibrous-looking needle-like crystals. The crystals are delicate, so this specimen hasn’t been washed ... this is a truly unusual and wonderful crystalline Spirit that you will love exploring with a loupe!

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Puffy, Silvery Artinite on Serpentine