2" Metallic, Needle-Like Pyrolusite Crystals - Morocco

This is a lustrous formation of radiating silver pyrolusite from Morocco. The specimen features several radiating sprays of shiny, metallic crystals in a red-brown, iron-rich matrix.

Pyrolusite is a mineral composed of manganese dioxide (MnO2) and is an important ore of manganese. It has a silver, metallic luster, a black or bluish-black streak, and readily soils the fingers. This mineral is commonly found in finely packed fibrous, acicular, and radial forms composed of very fine needles or fibers.

Pyrolusites from the the Imini Mine in the Drâa-Tafilalet Region of Morocco are believed to be manganites replaced by pyrolusite. Therefore, a more accurate name for these specimens would be: Pyrolusite replaced Manganites.

DETAILS
SPECIES
Pyrolusite
LOCATION
Imini Mine, Ouarzazate Province, Morocco
SIZE
2" Wide rock
CATEGORY
ITEM
#183855