Minerals identify

Know how to recognize them

Goslarite

Sulfate mineral

Goslarite is a hydrated zinc (ZnSO4 • 7H2O) which was first found in the Rammelsberg mine, Goslar. It was described in 1847. Goslarite belongs to the epsomite group which also includes epsomite (MgSO4 • 7H2O) and morenosite (NiSO4 • 7H2O). Goslarite is an unstable mineral at the surface and will dehydrate to other minerals like bianchite (ZnSO4 • 4H2O (ZnSO4 • H2O).

Identification

Color of mineral

Pink
White
Green
Blue
Brown

Mohs scale ( mineral hardness )

2.0

Density ( specific gravity )

1.447
1.475
1.47

Luster ( interacts light )

Vitreous

Crystal ( diaphaneity )

Orthorhombic