Amazonite — From the collection · View photograph

Stones underfoot / Collection

Amazonite

Brazil

Chemical formula(K,Na)AlSi₃O₈

Mohs hardness: 6 — 6,5
Dimensions: 40×30 mm

Properties

Specimen properties and description

Colour: Turquoise
Density: 2,54 — 2,57 g/cm³
Lustre: Vitreous
Transparency: Opaque
Cleavage: Perfect on (001) and (010)
Crystal system: Triclinic

Crystal structure

Triclinic crystal system

Crystal symmetry diagram.

Triclinic crystal system