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Psilomelane (Mn-Oxides)
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Psilomelane (Mn-Oxides) (Ref: 9851387)

China
220mm x 130mm x 60mm
$475
A large lustrous blue botryoidal example of what is known as psilomelane, basically mixed manganese oxides. In great condition. The specimen comes with a wooden Chinese style display base.
Data last checked on 31st Mar 2025 - specimen may no longer be available

From: Weinrich Minerals
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* price is an approximate conversion and may not be accurate.

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