Rare and elegant Mexican Psilomelane 13.5-15.5mm freeform beads (ETB00813)


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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: 14.5 x 18 x 6 mm
- this is only an approximate

Length: 16 inches

Finishing: Polished

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