Giant clam

English
Tridacna Shell

Origin
Indonesia

Introduction
The chemical composition of giant clam shell is CaCO₃. Its dense and distinct layers allow for a lustrous, jade-like texture after carving and polishing, earning it the name "white jade shell."

In Buddhist culture, the giant clam holds a particularly important status, being listed as one of the "Seven Treasures of Buddhism," symbolizing purity, solemnity, and wisdom. It is also made into Buddhist prayer beads, ritual implements, and offerings, used for spiritual practice and worship, reinforcing its sacred and protective cultural significance.