Minerals identify

Know how to recognize them

Chrysocolla

Phyllosilicate

Chrysocolla is a hydrated copper mineral with formula Cu 2–xAl x{H 2–xSi 2O 5)(OH) 4•nH 2O (x<1) or (Cu,Al) 2H 2Si 2O 5(OH) 4•nH 2O). The structure of the mineral has been questioned, as spectrographic studies suggest material identified as chrysocolla may be a mixture of the copper hydroxide spertiniite and chalcedony.

Identification

Color of mineral

Blue
Green
Black
Brown
Yellow

Mohs scale ( mineral hardness )

2.5

The streak

Green
White
Blue

Density ( specific gravity )

1.575
1.597
1.598

Luster ( interacts light )

Dull
Vitreous

Crystal ( diaphaneity )

Orthorhombic