Minerals identify

Know how to recognize them

Susannite

Carbonate mineral

Susannite is a lead hydroxide mineral. It has the formula Pb4SO4(CO3)2(OH)2. Susannite is the higher temperature phase of the two and forms above 80 °C when fluids oxidize the lead ore deposits. It is trimorphous and macphersonite

Susannite crystallizes in the trigonal system. It is quite soft with a Mohs hardness of 2.5 to 3.0 and a relatively high specific gravity of 6.57.

It was discovered in 1827 in the Susannah Mine, Leadhills in the county of Lanark In addition to the type locality in Scotland, it has also been reported from various locations in Germany, the Tiger Mine in Pinal County, Arizona, Brazil

Identification

Color of mineral

White
Green
Yellow
Brown

Mohs scale ( mineral hardness )

2.5

Density ( specific gravity )

1.96

Luster ( interacts light )

Adamantine
Resinous

Crystal ( diaphaneity )

Trigonal