Figure B-6. Sections through two cave pearls or spherical speleothems from Brown Dust Passage of Drum Cave, Jackson's Bay, Jamaica. The cave pearl on the left nucleated around a gastropod shell; the one on the right nucleated on a piece of rock. Collected and kindly provided by Dr. Donald A. McFarlane of the W.M. Keck Science center, Claremont, California, U.S.A.


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