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Product Description
Coquina Jasper Lapidary Rough Rock Fossil Shells Cabbing
This natural rough rock of Coquina Jasper is slabbed on one side, natural rough on the back, and it is 6 inches by 5.73 inches and 4 to 10 mm thick.
The unpolished rough rock endcut weighs 1 lbs. and is shown wet in the first 4 pictures.
Coquina is a consolidated sedimentary rock of biochemical origin, mainly composed of mineral calcite, often including some phosphate, in the form of seashells or coral. The shells that make up coquina can come from a variety of marine animals, such as clams, snails, and other shellfish.
Coquina forms near shore, where wave action is vigorous and sorts the sediments well.
Coquina is the Spanish word for cockleshells or shellfish.
It comes from an old collection that was mostly self-collected in the 30's to the 70's, so I believe it was found in the U.S., possibly Florida. There is a Coquina Beach that is located on the southern end of Anna Maria Island, a barrier island on the west coast of Florida. The beach is named after the coquina sedimentary rock that is found in the area.
