01. Where to find it
It may precipitate when carbonate-rich water releases carbon dioxide in the cave environment.
Geology & minerals
Calcite
CaCO₃ · Mineral
A calcium-carbonate mineral behind many of the remarkable formations inside caves.
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02. Why it matters
A key component of many speleothems, which grow extremely slowly on a human timescale.
03. How to observe and protect it
Never touch cave formations: skin oils and handling can damage delicate surfaces.
Reference source: Fundación Cueva de Nerja · Geología. Some species are rare or protected: being listed in the sources does not mean you are likely to see them.