The raw stone cassia is a kind of cassia, cassia has raw cassia, calcined cassia and salt cassia, raw cassia is actually the shells of the abalone family animals miscellaneous color abalone, wrinkled disc abalone, ear abalone, sheep abalone and so on. Raw cassia is salty and flat in nature, and is also known as true mother-of-pearl, Haliotis gigantea, nine-hole snail, millimetre light, true sea cassia, sea cassia, guan sea cassia, abalone shells, nine-hole cassia, abalone skin, and golden clam skin, which has the effect of calming the liver and clearing away heat, and brightening the eyes and removing cataracts.

The raw cassia mainly contains calcium carbonate, cholestrol and shell keratin and a variety of amino acids; the shell of the disc abalone contains more than 90% of calcium carbonate, organic matter of about 3.67%, and also contains a small amount of magnesium, iron, silicate, sulfate, phosphate, chloride, and iodine in very small quantities, and is used as a main treatment for hyperactivity of liver and yang, dizziness of the head and eyes, bone vaporization of the deficiency labor, vomiting of blood, and blindness, blindness, and cataracts.