Retrieving "Mother Of Pearl" from the archives

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1. Bivalve

   Linked via "mother-of-pearl"

   Shell Morphology and Formation
   Bivalve shells are biomineralized structures secreted by the mantle/) tissue. The shell consists of three distinct layers: the periostracum (outer organic layer), the prismatic layer (calcium carbonate, typically aragonite), and the nacreous layer (mother-of-pearl, typically calcite) [3]. The differential deposition …

2. Calcite

   Linked via "mother-of-pearl"

   Bivalve Shell Structure
   In many classes of Bivalvia, the shell structure comprises multiple layers. The inner, nacreous layer, or mother-of-pearl, is predominantly composed of well-ordered calcite platelets. This contrasts with the prismatic layer, which often precipitates as the metastable form, aragonite, before conversion or structural reorganization [1]. The specific morphology of the calcite crystals in the nacreous layer is thought to confer superior resistance …