mineral

Amazonite

Microcline (variety Amazonite) - K(AlSi3O8)

Hardness: 6.0-6.5; Color: turquoise-green to bluish-green, often with white streaks; Luster: Vitreous to pearly; Crystal structure: Triclinic; Cleavage: Perfect in two directions; Specific gravity: 2.56-2.58.

Hardness: 6
Color: turquoise-green to bluish-green, often with white streaks
Luster: Vitreous to pearly

Identified March 25, 2026More mineral →

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Physical properties

Formation & geological history

Forms primarily in granitic pegmatites and metamorphic rocks through hydrothermal processes. The teal color is caused by the presence of small amounts of lead and water within the feldspar structure.

Uses & applications

Predominantly used as a gemstone for jewelry (cabochons and beads) and as an ornamental stone for carvings, palm stones, and decorative objects.

Geological facts

Named after the Amazon River, though it is not actually found there; it was likely confused with other green stones from the region. It is often referred to as the 'Stone of Hope' or 'Amazon Stone'.

Field identification & locations

Identified in the field by its distinct blue-green color and 'schiller' effect (subtle white streaking). Common locations include Pikes Peak (USA), Minas Gerais (Brazil), Madagascar, and Russia.

Other mineral specimens

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Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

sedimentary

Epidote

Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)

metamorphic

Nephrite Jade

Nephrite

Mineral/Rock

Banded Gneiss (River Rock/Pebble)

Gneiss (specifically a banded variety often found as a river rock)

Metamorphic Rock

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

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Epidote

Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)

mineral