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Psilomelane 25x18mm Oval Cabochon
Psilomelane 25x18mm Oval Cabochon
Item Id: CAB-PSI25x18OV
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Psilomelane describes a group of hard black manganese oxides, including Hollandite and Romanechite. Psilomelane consists of hydrous manganese oxide with variable amounts of barium and potassium. Psilomelane is erroneously, and uncommonly, known as black hematite, despite not being related to true hematite, which is an iron oxide.
Approx. Strand Length: Individual
Approx. Hole Diameter:
NONE Cabochons are not drilled
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