Minerals identify

Know how to recognize them

Rapidcreekite

Sulfate mineral,carbonate mineral

Rapidcreekite is a rare mineral with formula Ca2(SO4)(CO3)·4H2O. The mineral is white to colorless and occurs as groupings of acicular (needle-shaped) crystals. It was discovered in 1983 in northern Yukon , Canada, and described in 1986. Rapidcreekite is structurally and compositionally similar to gypsum.

Identification

Color of mineral

White

Mohs scale ( mineral hardness )

2

Density ( specific gravity )

1.516
1.518
1.531

Luster ( interacts light )

Vitreous

Crystal ( diaphaneity )

Orthorhombic