1.4" Needle-Like Pyrolusite Crystals on Matrix - Mexico

This is a formation of silver-black pyrolusite crystals on matrix, collected from the Ojuela mine in Durango, Mexico. It has been mounted to an acrylic display base with mineral tack.

Ojuela is not one mine, but a complex of multiple mines in the same general area, located just northwest of Mapimi, Mexico. It was established in 1598 after the discovery of an old abandoned silver and gold mine. As mineral production increased and the mineral potential was confirmed, the town (Ojuela settlement) adjacent to the mine, along with the city of Mapimi, began to grow as well. The mining settlement was such a success that it contained a post office, warehouses, stores, saloons, a church and housing for the miners. Once minerals were collected, they were processed in Mapimi, which also played a role in the rapid development of the city. Around the start of the 20th century, most of the mineral deposits were exhausted, resulting in the abandonment of the mines and settlement.

The mine is well known by mineral collectors for its aresenate minerals and a variety of other mineral species (approximately 117 identified). Some of the most popular minerals include adamite, austinite, hemimorphite, scorodite, platternite, aurichalcite, rosasite, calcite, wulfenite, mimetite, iridescent goethite and fluorite.



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

FOR SALE
$25
DETAILS
SPECIES
Pyrolusite
LOCATION
Ojuela Mine, Mapimi, Durango, Mexico
SIZE
1.4" wide
CATEGORY
ITEM
#211844