|Weight||4553 gr. 4.55 kg|
|Size||max mm xx mm|
|Category||Crystals and geodes|
|Group||Crystals on ganges|
|Formula MnO2] PYROLUSITE|
|O||Oxygen||Other no metal||36.81%|
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.
Your orders are usually shipped the day of the order and at the latest after 2 working days.
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.