Minerals identify

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Sauconite

Phyllosilicate mineral

Sauconite is a complex phyllosilicate mineral of the smectite 0.3Zn )2·4H2O. It forms soft earthy bluish white to red-brown monoclinic crystals typically massive to micaceous in habit. It has a Mohs hardness of 2.45. Optically it is biaxial positive with refractive index values of nα = 1.550 - 1.580, nβ = 1.590 - 1.620 and nγ = 1.590 - 1.620. and seams in the oxidized zones of zinc deposits. It occurs in association with hemimorphite , chrysocolla and various iron oxides.

It was named for the Saucon Valley in Pennsylvania

Identification

Color of mineral

Red
Brown
Yellow

Mohs scale ( mineral hardness )

1

Density ( specific gravity )

1.55
1.59
1.59

Luster ( interacts light )

Dull

Crystal ( diaphaneity )

Monoclinic