mineral

Tumbled pale green calcite

Calcite (CaCO₃)

AI-generated identification · may be incorrect

Typically pale green to cream, translucent, with vitreous-to-pearly luster and rhombohedral cleavage; Mohs hardness 3, specific gravity about 2.7. The smooth rounded surface indicates tumbling or polishing.

Identified August 11, 2026More mineral →

Explore Tumbled pale green calcite 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

Calcite forms in sedimentary limestone, hydrothermal veins, cavities, and metamorphic marble; green color may result from inclusions or trace elements. Deposits range from Precambrian to modern geological ages.

Uses & applications

Used for cement, lime, soil treatment, and as a carbonate mineral specimen; attractive polished pieces are sold for collecting and décor, but this example is not typically jewelry-grade.

Geological facts

Calcite effervesces vigorously with dilute hydrochloric acid and shows strong birefringence. It is much softer than quartz and can be scratched by a steel blade.

Field identification & locations

Commonly found worldwide, including Mexico, Brazil, China, and the United States. Confirm with a hardness test and acid reaction; avoid vinegar if a definitive test is needed because it may react weakly.