Bulletin of the National Speleological Society - ISSN 0146-9517
Volume 25 Part 2: 88-90 - July 1963

A publication of the National Speleological Society

Moonmilk, Cave Pearls and Pool Accretions from Fulford Cave, Colorado
John V. Thrailkill

Abstract

Moonmilk, cave pearls, and a speleothem termed a pool accretion occur in Fulford Cave, Eagle County, Colorado. The moonmilk is composed of calcite, and its appearance suggests that it may be or organic, possibly fungus, origin. Cave pearls occur both in crowded pockets in which agitation appears unlikely, and in individual depressions. Cave pearls of the second type are polished pool accrettions, an unattached sphere or ellipsoid of calcite having a rough surface and found in dry gour pools.

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