mineral
Likely rough amazonite
Amazonite, a green variety of microcline feldspar (KAlSi₃O₈)
AI-generated identification · may be incorrectPale blue-green with white and peach-colored areas; typically vitreous to pearly, Mohs hardness 6–6.5, and two near-right-angle cleavages. The photo does not show enough detail to confirm the identification; similar-looking feldspar or quartz is possible.
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Physical properties
Pale blue-green with white and peach-colored areas; typically vitreous to pearly, Mohs hardness 6–6.5, and two near-right-angle cleavages. The photo does not show enough detail to confirm the identification; similar-looking feldspar or quartz is possible.
Formation & geological history
Forms in potassium-rich granitic pegmatites as magma cools slowly, allowing large feldspar crystals to grow. Such deposits occur in rocks of varied geological ages.
Uses & applications
Used as a decorative and lapidary stone, including in beads, cabochons, and small carvings; also collected as a mineral specimen.
Geological facts
Amazonite’s blue-green color is associated with trace impurities and structural effects in feldspar; it is not a copper mineral despite its appearance.
Field identification & locations
Common sources include Brazil, Russia, Madagascar, and the United States. Check for feldspar-like cleavage and hardness near 6; a photo alone cannot reliably distinguish it from other pale-green stones.
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