mineral

Amazonite (rough specimen)

Microcline feldspar, KAlSi₃O₈; amazonite is its green-blue variety

AI-generated identification · may be incorrect

Opaque to translucent turquoise-green areas with a pearly to vitreous luster and blocky cleavage; Mohs hardness 6–6.5. The photo is consistent with amazonite, though visual identification alone is not definitive.

Identified October 10, 2026More mineral →

Explore Amazonite (rough specimen) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Forms in potassium-rich granitic pegmatites as feldspar crystals; its color is associated with trace impurities and structural defects. Pegmatites range widely in age, often Precambrian to younger.

Uses & applications

Used for carvings, beads, cabochons, and mineral collecting; feldspar is also used industrially in ceramics and glass.

Geological facts

Amazonite is a variety of microcline, not a separate mineral species; its vivid color can occur in irregular patches.

Field identification & locations

Look for blue-green color, feldspar-like cleavage, and hardness near 6; common sources include Brazil, Russia, Madagascar, and the United States. A rough specimen of this size typically sells for about $5–$30, depending on color and quality.