Ostrea gigas Extracts. Plant Part Used: Oyster Shell. Extract Ratio:10:1 Serie Code: P-042 Expiration Date:24Months in Good Condition Appearance Showing: Pale Yellow to White Fine Powder Extracts State: Fine Crystal Powder Mesh Size:100% Pass 80 Mesh Screen Color: Pale Yellow to White Odor and Smell: Characteristic Taste Sense: Light Salty Bulk Density:0.48 g/ml. Brief Instruction: The shell of Ostrea gigas Thunb, Ostrea ta Crosse, or Ostrea rivularis Gould, of the family Ostreidae (true oyster) or Aviculidae (pearl oysters). Oyster is a bivalve shellfish having two shells of the mollusk group. True oysters have been cultivated as food since pre-Christian times. Pearl oysters also have long been valued for the precious pearls that develop in them. Indications: Palpitation, insomnia, dizziness and tinnitus; scrofula, mass formation in the abdomen. Concha Ostreae (calcined) Spontaneous sweating, night sweating; seminal emission; abnormal uterine bleeding, excessive leucorrhea; epigastric pain with acid and the test solution into the column separately. And calculate the content.