Turquoise
From the collection · View photograph

Stones underfoot / Collection

Turquoise

Kazakhstan

Chemical formulaCuAl₆(PO₄)₄(OH)₈ ⋅ 4H₂O

Mohs hardness
5–6
Dimensions
85×60 mm

Properties

Specimen properties and description

Colour
Greenish
Density
2,6—2,8 g/cm³
Lustre
Waxy
Transparency
Opaque
Cleavage
Imperfect
Crystal system
Triclinic

Crystal structure

Triclinic crystal system

Crystal symmetry diagram.

Triclinic crystal system
Turquoise