Cryptomelane : K(Mn4+7Mn3+)O16
40mm x 15mm x 26mm
Current ownership:
The Yannick Verbelen collection.
Photo added to mindat.org
“Metallic black cryptomelane on matrix.
”
Yannick Verbelen - 5th January 2014
Photo added to mindat.org
“Metallic black cryptomelane on matrix.
”
Yannick Verbelen - 5th January 2014
Photo added to mindat.org
“Metallic black cryptomelane on matrix.
”
Yannick Verbelen - 5th January 2014
No-one has added this to their favourites.
10,442,669 minIDs have been issued as of 19th Apr 2024 9:36 pm UTC