Minerals identify

Know how to recognize them

Witherite

Carbonate mineral

Witherite is a barium carbonate C Witherite crystallizes in the orthorhombic The mineral is colorless, milky-white, grey, pale-yellow, green, to pale-brown. The specific gravity is 4.3, which is high for a translucent mineral. light blue under both long- and short-wave UV light, and is phosphorescent

Witherite forms in low-temperature hydrothermal environments. It is commonly associated with fluorite , celestine, calcite. Witherite occurrences include: Cave-in-Rock, Illinois , US; Pigeon Roost Mine, Glenwood, Arkansas, US; Settlingstones Mine Northumberland; Alston Moor , Lancashire ; Thunder Bay , Germany and Tajno).

Witherite was named after William Withering (1741–1799) an English physician and naturalist who in 1784 published his research on the new mineral. He could show that barite and the new mineral were two different minerals.

Identification

Color of mineral

White
Grey
Yellow
Brown
Green

Mohs scale ( mineral hardness )

3.0

Density ( specific gravity )

1.529
1.676
1.677

Luster ( interacts light )

Vitreous
Resinous

Crystal ( diaphaneity )

Orthorhombic

Fluorescent

Fluorescent