Capiz Shell, also know as windowpane oyster, is a bivalve marine mollusk in the family of Placunidae. Although they are edible they are more valued for their shells. The shells have been used for thousands of years as a glass substitute because of their durability and translucence.
 
 
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* Photos show all sides.
* Sizes, shapes and colors my vary due to being a natural stone, being hand-carved and/or difference in computer monitors.