Natural crystallized pyrolusite
Weight 390 gr
| CHARACTERISTICS | |
| Weight | 390 gr |
| Size | 105x60x45 mm |
| Reference | 220908321 |
| Mineral | mineral Pyrolusite |
| Category | Crystals and geodes |
| Group | Crystals on ganges |
| Country |
 Morocco
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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 | 63.19% |
| O | Oxygen | Other no metal | 36.81% |
| 100% | |||
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Pyrolusite is a mineral composed primarily of manganese dioxide and is considered the most important manganese ore. Its crystal structure is tetragonal, and its crystals are usually acicular or fibrous in shape, although more massive shapes are also common. Pyrolusite varies in color from steel gray to jet black, with a metallic or submetallic luster. It has a hardness of 6 to 6.5 on the Mohs scale. Pyrolusite is often associated with other manganese minerals and typically forms in oxidizing environments of manganese deposits. In addition to its use as a manganese ore, pyrolusite also has applications in glass bleaching, dry cell manufacturing, and as a bleaching agent in ceramic production.
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Shipping time
Your orders are usually shipped the day of the order and at the latest after 2 working days.
Delivery delay
Once the package is supported by the postal service, delivery times are those announced by the Post (letter followed or Colissimo followed). Parcel shipping from France.
Returns and Refund
Our refund and return policy lasts 14 days. You can read the details on the "return and delivery" page.
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