The Specimen Library / Under the Loupe
Calcite · Science
Calcium carbonate / mineral species
A closer look beyond the specimen label.
← Return to Calcite
The material, examined
What the name tells you
Calcite and aragonite share a chemical formula but arrange their atoms differently. Composition is only part of a mineral’s identity; structure also matters.
A useful question at the counter
Is the color a variety label or a claim about composition? “Orange calcite” does not identify every orange tumble.
A note for your collection
Avoid acids, abrasive cleaning and knocks. Dust gently rather than treating a polished calcite as scratch-resistant quartz.
Sources & further reading
References are labeled by role. A source documenting a belief is not evidence of a medical or mineralogical effect. Reflection prompts are C&C editorial suggestions.
- Handbook of Mineralogy: Calcite
- C&C original crystal-practice index, 2017 archive: contemporary C&C teaching and symbolic associations.
Adjacent drawers
Related Specimens
The cabinet