Pyrolusite from Atlas Mountains Morocco
Size-
6cm x 5cm x 4.7cm
Weight-
293g
You will receive the item in the photo
Pyrolusite is a crucial black to steel gray colour manganese dioxide mineral.
Pyrolusite belongs to the tetragonal crystal system and is an oxide mineral class.
Pyrolusite forms under highly oxidizing conditions,typically in shallow marine,bog or lacustrine environments or as a secondary alteration product.
It hardness is 2-6.5 on the MOHs scale.
