mineral
Pale green tumbled stone, possibly green calcite
Uncertain from the image; appearance is consistent with calcite (CaCO₃)
AI-generated identification · may be incorrectTranslucent pale green with a polished, glassy-to-waxy luster and rounded edges. If calcite, hardness is 3 Mohs and crystals are trigonal; the photo is insufficient to confirm composition or cleavage.
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Physical properties
Translucent pale green with a polished, glassy-to-waxy luster and rounded edges. If calcite, hardness is 3 Mohs and crystals are trigonal; the photo is insufficient to confirm composition or cleavage.
Formation & geological history
Green calcite forms in carbonate-rich geological settings, commonly through mineral deposition or alteration. Its age and specific origin cannot be determined from the image.
Uses & applications
Small polished calcite pieces are used for collecting, decoration, and inexpensive jewelry or carvings.
Geological facts
Calcite reacts with dilute acid and is much softer than quartz, useful tests for distinguishing it from similar-looking stones.
Field identification & locations
The specimen appears tumbled and pale green, but several minerals can look similar; hardness, acid reaction, and cleavage tests can help identify it. Green calcite occurs in many regions, including Mexico and parts of Europe.
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