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Haliotis Shell

Updated: 2026-07-15

Overview

Haliotis Shell, or abalone shell, is harvested from marine mollusks of the Haliotis genus. It has been used for centuries in traditional Chinese medicine (TCM) for its purported liver-clearing and vision-improving properties. The shell’s iridescent inner layer, known as mother-of-pearl, also makes it a prized material in jewelry and decorative arts. In modern industries, it is processed into powder or fragments for dietary supplements, pharmaceutical excipients, and biocompatible coatings. Its high calcium carbonate content (90–95%) and trace organic compounds contribute to its functional versatility.

Physical and Chemical Properties

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Haliotis Shell primarily consists of calcium carbonate (CaCO₃) in aragonite form, layered with conchiolin proteins. This structure grants it remarkable strength and iridescence. The shell is insoluble in water but reacts with acids, releasing CO₂. Its density (~2.7 g/cm³) and thermal stability (decomposition at 825°C) make it suitable for high-temperature applications. The organic matrix, though minor (3–5%), enhances biocompatibility, enabling uses in medical implants. The powdered form has a particle size ranging from 50–500 microns, depending on processing methods like milling or calcination.

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Main Applications

In TCM, Haliotis Shell is prescribed for hypertension, eye disorders, and detoxification. It is often decocted or powdered for oral use. Industrially, the shell’s calcium carbonate is used as a filler in pharmaceuticals, cosmetics, and biodegradable plastics. The mother-of-pearl layer is crafted into buttons, inlays, and art pieces due to its luster. Recent research explores its potential in bone grafts and wound dressings, leveraging its osteoconductive properties. Niche applications include water filtration and soil amendment in agriculture.

Safety and Storage

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While non-toxic, Haliotis Shell powder can irritate respiratory tracts if inhaled during handling. Protective masks and ventilation are recommended. Storage requires dry conditions to prevent clumping and chemical degradation. The shell’s organic components may attract pests, so sealed containers are advised. For pharmaceutical use, suppliers must ensure compliance with heavy metal limits (e.g., <10 ppm lead) and microbial standards. Sterilization via gamma irradiation is common for medical-grade material.

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B2B Procurement Guide

Buyers should prioritize suppliers who provide species certification (e.g., Haliotis discus for premium quality) and lab analysis for CaCO₃ purity (≥90%). Pricing tiers depend on processing: raw fragments are cheaper ($5–$15/kg), while nano-sized powder for biomedicine can exceed $50/kg. Bulk shipments often require fumigation certificates to meet international phytosanitary regulations. For sustainable sourcing, verify compliance with CITES regulations, as some abalone species are endangered. Sample testing for contaminants like arsenic is critical for food or pharmaceutical applications.

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