Draft:Conulites

Conulite in Bristol Caverns (glove for scale)

A conulite, also called a mud cup, is a type of dripstone that forms when water drips into a soft sediment, both eroding the sediment and depositing calcite.[1] Because they form in this way when surrounding sediment is washed away, these formations are left standing like ice cream cones stuck in mud.[2]

Variations

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There are two main variations on cave conulites formed in very similar ways but different enough to have their own names.

  • The first are cave birdbaths, these are low-angle conulites that have a rim around the edge similar to that of a Rimstone dam.
  • The second are cave fans, these are conulites that are not calcified all the way around their circumference. These formations look like fan coral, hence the name.
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References

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  1. ^ Hill, C A, and Forti, P, (1997). Cave Minerals of the World, (2nd edition). [Huntsville, Alabama: National Speleological Society Inc.] pp. 217, 225
  2. ^ Conulites. National Speleological Society. (2023a, October 10). https://caves.org/virtualcave/conulites/