Minerals identify

Know how to recognize them

Piypite

Sulfate mineral

Piypite is a rare potassium sulfate mineral with formula: K2Cu2O(SO4)2. It crystallizes in the tetragonal system and occurs as needlelike crystals and masses. Individual crystals are square in cross-section and often hollow. It is emerald green to black in color with a vitreous to greasy luster.

It was first described in 1982 for an occurrence in the Main Fracture of the Tolbachik volcano , Russia, Italy, and in a slag in the Rhineland-Palatinate Piypite occurs as a sublimate environment. Associated minerals include halite , langbeinite, tolbachite, aphthitalite , cotunnite, euchlorine, alarsite and lammerite in Kamchatka. On Vesuvius, it occurs with paratacamite

Identification

Color of mineral

Green
Black

Mohs scale ( mineral hardness )

2.5

The streak

Green

Density ( specific gravity )

1.583
1.695

Luster ( interacts light )

Greasy
Vitreous

Crystal ( diaphaneity )

Tetragonal