|Small Greeting Card||Large Greeting Card||Postcard|
|4" x 6"||5" x 7.5"||4" x 6"|
A cave pearl is a type of speleothem which form in certain limestone caves. These unique spherical formations are created in cave pools when layers of calcite are slowly deposited around a grain of sand or dirt. Cave pearls often degrade when removed from cave water and allowed to dry.