Rare and elegant Mexican Psilomelane 20-45mm freeform beads (ETB00841)



Psilomelane, also known as black hematite, is a group name for hard black manganese oxides such as hollandite and romanechite. Psilomelane consists of hydrous manganese oxide with variable amounts of barium and potassium.


Dimensions of beads:

Size: 20 x 21 x 6 - 45 x 44 x 8 mm
- this is only an approximate

Length: 9 inches

Finishing: Polished

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