Calcite (Inventory)/Spar

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The Spar subsection of the Calcite section records stations where some type of spar is observed.

Spar crystals are classified on the CCNP Cave Inventory Form as to their shape and location. Spar crystals that form in pools of water above the water table are known as pool spar. Those that form under the water table are classified as either dogtooth or nailhead according to the shape of the individual crystals.

All three of the spar types are calcite though other minerals can form spar.


  • Hill, Carol; Paolo Forti (1997) Cave Minerals of the World (Second Edition ed.) National Speleological Society p 101 ISBN: 1-879961-07-5


Calcite (Inventory)/Spar is a part of the cave inventory project.