mineral

Pink calcite (likely iron-stained calcite)

Calcite, CaCO₃; commonly rhombohedral or massive crystalline aggregate

AI-generated identification · may be incorrect

Pale pink to salmon, with white translucent areas and brown iron-oxide staining; vitreous to pearly luster and prominent cleavage. Mohs hardness 3, specific gravity about 2.71; likely shows rhombohedral cleavage, though the photograph does not resolve crystal faces clearly.

Identified August 18, 2026More mineral →

Explore Pink calcite (likely iron-stained 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 commonly forms in hydrothermal veins, cavities, and limestone or marble environments; the pink color may result from manganese or iron impurities. Precise geological age and locality cannot be determined from the image alone.

Uses & applications

Used industrially for cement, lime, aggregate, and chemical manufacture; attractive pink specimens are collected and occasionally used decoratively. It is generally too soft and cleavage-prone for everyday jewelry.

Geological facts

Calcite effervesces vigorously with dilute hydrochloric acid or vinegar, especially on a fresh surface. It has strong birefringence: transparent pieces can make printed lines appear doubled.

Field identification & locations

Likely calcite if it scratches easily with a steel knife and reacts with acid; distinguish quartz by calcite’s softness, cleavage, and acid reaction. Common worldwide in limestone districts and mineral veins.