Pyrolusite Black Lustrous acicular crystalline rim with black druzy mineral. Silvery metallic luster. Fibrous Crystal Druzy.
Dimensions (millimeters): 60 x 50 x 30
Dimensions (inches): 2.4 x 2 x 1.2
Origin: Imini Mine, Morocco from the Sahara Desert, Africa
Pyrolusite is a mineral is manganese dioxide and is important as an ore of manganese. Dendrites in Rhyolite and other minerals are usually branching pyrolusite. Pyrolusite can be sooty but is non-toxic so no worries.
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