Held at Namaste Bookshop, 2 W 14th St · Pickup or deliveryDaily from 11 AMCollect in Manhattan

Rhodochrosite specimens

8 pieces in the collection.

Chemistry
MnCO₃, manganese carbonate
Crystal system
trigonal
Mohs hardness
3.5 to 4

Argentina is known for banded stalactitic rhodochrosite; cutting across a stalactite shows its concentric rings. Soft and sensitive to acids.

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