Materials

Calcite

Mineral

Citation Formats

General Reference

Earth and Environment Atlas. "Calcite." Accessed August 29, 2026. https://dev-earth.interactiveatlas.org/materials/calcite.

APA Style

Earth and Environment Atlas. (n.d.). Calcite. Retrieved August 29, 2026, from https://dev-earth.interactiveatlas.org/materials/calcite

BibTeX

@misc{earthandenvironmentatlas-calcite,
  author = {Earth and Environment Atlas},
  title = {Calcite},
  year = {2026},
  url = {https://dev-earth.interactiveatlas.org/materials/calcite},
  note = {Accessed August 29, 2026}
}

The most stable form of calcium carbonate and the mineral that limestone and marble are built from. It defines hardness 3 on the Mohs scale and effervesces visibly in weak acid, a standard field test for identifying it.

Facts

Kind

Mineral 1

Formation Class

Carbonate mineral 1

Chemical Formula

CaCO3, calcium carbonate 1

Hardness (Mohs)

3 1

Calcite is the reference mineral that defines the value of 3 on the Mohs scale itself.

Cross-Tradition Connections

In Discipline

Mineralogy

Source Mineral (Wikipedia)

Sources

1. Mineral (Wikipedia)

Wikimedia FoundationView the Source

Comments (0)

No comments yet. Be the first to share a thought.

Reader Challenges (0 open reader challenges)

No disputes yet. Spotted an error or a better source? Open the first one.

View At A Past Year

The atlas records no dated fact of its own for this entry, so there is no other year to choose.

Switch Atlas

The Inner World

The Civil World

The Natural World