Shi Yan Water-Processed Fossil Stone Swallow Dried Mineral Herb 500g Traditional TCM Decoction Ingredient

Shi Yan (石燕), also called Shi Yan Zi, is a fossilized brachiopod shell mineral used in traditional Chinese medicine, sourced from ancient Spirifer-type fossil stone. In TCM theory it is considered cool in nature with sweet and salty flavor, traditionally associated with clearing heat and supporting dampness resolution. This dried mineral herb is supplied as cleaned, dried pieces for decoction use. Consult a qualified practitioner before use.

Key Selling Points

• Authentic Shi Yan 石燕 fossil mineral herb prepared by traditional water-processing
• Sourced from China and supplied as dried mineral pieces for decoction use
• Traditionally associated in TCM with clearing heat and resolving dampness
• Carefully dried and cleaned for stable storage and convenient preparation
• 500g bag suitable for herbal formulas, decoctions, and long-term herbal practice

Quality & Sensory

Typically grayish to grayish-brown in color with a hard, stony texture and irregular shell-like fragments. The mineral has no distinct aroma, and when decocted it imparts a mild, slightly mineral taste to the liquid.

Technical Specifications

Usage Scenarios

• Decocted in herbal formulas under practitioner guidance
• Combined with other mineral and herbal ingredients in traditional decoctions
• Used in classical TCM prescriptions requiring Shi Yan
• Stored refrigerated for long-term herbal supply

Traditional Uses

In traditional Chinese medicine, Shi Yan has historically been used in decoctions, often combined with herbs such as Shi Gao and other heat-clearing materials. It was traditionally associated with supporting the eyes, damp-heat conditions, and urinary comfort in classical formulas. The mineral is typically decocted first or wrapped before simmering with other herbs.

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