Minerals identify

Know how to recognize them

Lorándite

Sulfosalt mineral

Lorándite is a thallium with the chemical formula: TlAsS2. Though rare, it is the most common thallium-bearing mineral. Lorandite occurs in low-temperature hydrothermal associations and in gold deposits. Associated minerals include stibnite , realgar, greigite , tetrahedrite and barite

The mineral is being used for detection of solar neutrino via a certain nuclear reaction It has a monoclinic crystal structure consisting of spiral chains of AsS3 tetrahedra interconnected by thallium atoms, and can be synthesized in the laboratory.

Identification

Color of mineral

Red
Grey

Mohs scale ( mineral hardness )

2.0

The streak

Red

Density ( specific gravity )

2.72

Luster ( interacts light )

Adamantine
Metallic

Crystal ( diaphaneity )

Monoclinic