Minerals identify

Know how to recognize them

Plattnerite

Oxide mineral

Plattnerite is an oxide mineral and is the beta crystalline form of lead dioxide being the other, alpha form. It was first reported in 1845 and named after German mineralogist Karl Friedrich Plattner. Plattnerite forms bundles of dark needle-like crystals on various minerals; the crystals are hard and brittle and have tetragonal symmetry.

Identification

Color of mineral

Brown
Iron
Black

Mohs scale ( mineral hardness )

5.5

The streak

Brown

Density ( specific gravity )

2.35
2.25

Luster ( interacts light )

Adamantine
Metallic

Crystal ( diaphaneity )

Tetragonal