Minerals identify

Know how to recognize them

Chapmanite

Phyllosilicate

Chapmanite is a rare silicate belonging to the nesosilicate group, discovered in 1924, and named in honour of the late Edward John Chapman (1821–1904), a geology professor at the University of Toronto antimony, and may contain aluminium impurities. It is closely associated with silver , Canada in gneiss. It takes the form of a powdery, yellow-green, semitransparent solid, and leaves a streak of the same color. Early German texts have referred to the mineral as antimon-hypochlorite.

It was recently rediscovered in the southern hemisphere at the abandoned Argent lead mine in Bushveld series rocks of South Africa.

Identification

Color of mineral

Yellow
Green

Mohs scale ( mineral hardness )

2.5

The streak

Green

Density ( specific gravity )

1.85
1.95
1.96

Luster ( interacts light )

Metallic
Adamantine
Dull

Crystal ( diaphaneity )

Monoclinic