by Metwally Hamza, Full Geologist, Egypt
- Pyrolusite is an oxide mineral, that has a chemical composition of "Manganese dioxide", and the most remarkable and notable property is the glassy showing appearance, the can be named as "glassy lustre", with very dark black color.
- The picture has a normal scale, not zoomed-up or not zoomed-down.
Taken and Itemized by Metwally Hamza.
Submitted on April 7, 2020
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Credit: Metwally Hamza (distributed via imaggeo.egu.eu)
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