mineral

Pale blue-green tumbled stone, possibly amazonite

Uncertain from the image; amazonite is a variety of microcline feldspar, KAlSi₃O₈

AI-generated identification · may be incorrect

Rounded, opaque to slightly translucent pale blue-green piece with a subdued polish; hardness and crystal structure cannot be confirmed visually. If amazonite, hardness is about 6–6.5 Mohs, with a vitreous to pearly luster and two cleavage directions.

Identified September 25, 2026More mineral →

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Physical properties

Formation & geological history

If amazonite, it crystallized in potassium-rich granitic pegmatites as magma cooled; such deposits occur in rocks of many geological ages. The specimen appears tumbled or otherwise smoothed.

Uses & applications

Tumbled stones are used for collecting, crafts, and inexpensive jewelry; amazonite is also used as an ornamental stone.

Geological facts

Pale blue-green color alone is not enough to distinguish amazonite from other minerals such as blue calcite or dyed stone.

Field identification & locations

The image shows a small, smooth, pale blue-green pebble without diagnostic crystal faces or visible texture, so identification is tentative. Testing hardness, streak, and cleavage—or examining it closely—would help identify it.