📜 Key facts
| Age | Varies by deposit |
|---|---|
| Origin & sources | Various localities, often sold from Mexico and Peru. |
| Composition | Calcite darkened by inclusions such as carbon, manganese oxides or organic matter (CaCO₃, Mohs 3). |
How it forms
Calcite crystallizes from carbonate-rich water in veins, caves and cavities, or forms masses in sediment. Trace elements and inclusions give its many colours. It is soft, fizzes in dilute acid and dissolves slowly in water, so keep it dry.
Mineral data: see Calcite.
🌍 Where it's found
- Type locality
- Notable source / deposit
- Country of origin
Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.
✨ Calcite family
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Blue CalciteMineral variety
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CalciteIMA mineral species

Calcite GeodeGeode / nodule
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Caribbean Blue CalciteMineral variety

CobaltocalciteMineral variety

Dogtooth CalciteMineral variety
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Green CalciteMineral variety

Honey CalciteMineral variety

Iceland sparMineral variety
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Lemon CalciteMineral variety

Manganoan calciteMineral variety
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Mango CalciteMineral variety
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Merkabite CalciteMineral variety
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Nailhead sparMineral variety
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Orange CalciteMineral variety
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Rainbow CalciteMineral variety
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Red CalciteMineral variety

Satin SparMineral variety
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Stellar Beam CalciteMineral variety
Learn more
Mineral variety
Black
Root
Healing crystal




