18

Raw crystallized pyrolusite

Weight 150 gr
CHARACTERISTICS
Weight 150 gr
Size 80x55x35 mm
Reference 220908341
Mineral mineral Pyrolusite
Category Crystals and geodes
Group Crystals on ganges
Country Country Morocco Morocco
Contractual photos showing the object you will receive when ordering. the photos were taken in order to obtain the most faithful possible rendering of the object.
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Formula MnO2] PYROLUSITE
Mn Manganese Transition metal 63.18%
O Oxygen Other no metal 36.81%
100%
Pyrolusite is a mineral composed mainly of manganese oxide (MnO2). It is gray to black in color and occurs as granular masses, hilly or in thin plates. It generally forms in hydrothermal and metamorphic zones fed with manganese oxide and other dissolved salts. Pyrolusite can be used as a catalyst, in batteries and dyes. It is also an important pigment in graphite, lampblack and charcoal. It is also used in some water treatments and is mixed into cements, mortars and bricks to help with corrosion resistance.

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