Costaziae Skeleton Pieces
Couldn't load pickup availability
Costaziae Skeleton Pieces (Costazia aculeata) are dried pieces of the calcified skeletal structure of a marine red alga traditionally collected from coastal waters and used in specialized East Asian materia medica and mineral-based preparations. Unlike soft leafy seaweeds, Costazia aculeata develops a firm, calcium-rich structure, giving the dried material its distinctive pale, porous appearance. Marine materials of this type have traditionally been valued for their mineral content and use in preparations intended to support internal balance and digestive wellness.
In traditional practice, Costaziae Skeleton Pieces may undergo cleaning, crushing, grinding, or other specialized processing before being incorporated into preparations. Because the material is naturally hard and mineralized, the whole pieces are generally not consumed directly. Traditional applications have focused on the unique properties of the processed marine skeleton rather than treating it as an ordinary edible sea vegetable.
The skeletal structure of calcified marine algae is composed largely of calcium carbonate and other naturally occurring marine minerals. Materials of this type have consequently attracted interest as natural sources of calcium-rich mineral matter and have historically been incorporated into specialized preparations where their mineral composition and buffering characteristics were desired.
Scientific information specifically examining Costazia aculeata remains limited. Research on calcified red algae more broadly has identified mineral matrices rich in calcium carbonate along with magnesium and various trace minerals, although composition can differ considerably according to species and growing environment. Because species-specific clinical research is scarce, the traditional applications of Costazia aculeata should not be interpreted as established therapeutic effects.
Each batch of Costaziae Skeleton Pieces (Costazia aculeata) is carefully cleaned and dried to preserve its natural mineralized structure, characteristic texture, and traditional materia medica quality. The pieces are suitable for traditional processing, botanical and marine collections, educational study, and specialized materia medica preparations where authentic calcified marine material is required.
Also Known As: Fu Hai Shi, 浮海石 (Fú Hǎi Shí), Os Costaziae, Costaziae Skeleton, Marine Bryozoan Skeleton, Sea Pumice
Nutrients: Primarily calcium carbonate and other naturally occurring mineral salts, with trace marine mineral constituents
Notes: Fu Hai Shi (浮海石) is a traditional Chinese materia medica ingredient that may refer specifically to the dried skeleton of the marine bryozoan Costazia aculeata. The material is naturally lightweight, porous, brittle, and coral-like in appearance, with numerous tiny channels throughout the surface and interior. In Traditional Chinese Medicine, Fu Hai Shi is classified as a salty, cooling substance and has traditionally been associated with supporting respiratory comfort, helping transform thick phlegm, softening areas of hardness according to TCM principles, and supporting urinary wellness. It is typically cleaned, dried, broken into smaller pieces, and incorporated into decoctions or other traditional preparations. Unlike botanical herbs, Costaziae Skeleton is an animal-derived mineralized skeletal material rather than a plant ingredient.


