mineral

Amazonite

Potassium Feldspar (KAlSi3O8)

Hardness: 6-6.5 on Mohs scale; Color: Blue-green to turquoise-green; Luster: Vitreous to pearly; Crystal Structure: Triclinic; Cleavage: Perfect in two directions

Hardness: 6-6
Color: Blue-green to turquoise-green
Luster: Vitreous to pearly

Identified July 2, 2026More mineral →

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Physical properties

Hardness: 6-6.5 on Mohs scale; Color: Blue-green to turquoise-green; Luster: Vitreous to pearly; Crystal Structure: Triclinic; Cleavage: Perfect in two directions

Formation & geological history

Forms in igneous rocks like pegmatites and granites, as well as some metamorphic rocks. The green color is often attributed to the presence of lead and water within the feldspar structure.

Uses & applications

Primarily used as a gemstone for jewelry, beads, and cabochons. It is also highly valued by mineral collectors for its vibrant color.

Geological facts

Amazonite is named after the Amazon River, though it is not actually found there. It is sometimes called 'Amazon Stone.' The variety in this image appears notably raw and displays the characteristic white streaks common to the mineral.

Field identification & locations

Identify in the field by its distinct blue-green color and pearly luster on cleavage planes. Common locations include Brazil, Russia (Urals), Madagascar, and Colorado (Pikes Peak), USA.