Organic geological/oceanic specimen

Ambergris (Sea Wax)

Physeter macrocephalus fecalith

AI-generated identification · may be incorrect

Hardness: 1-2. Color: dull gray, brownish, or yellowish. Luster: waxy or dull. Crystal structure: amorphous (none). Specific gravity: 0.7-0.9 (floats in water). Texture: waxy, slightly tacky when warmed.

Hardness: 1-2
Color: dull gray, brownish, or yellowish
Luster: waxy or dull

Identified May 3, 2026More organic geological/oceanic specimen →

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Physical properties

Formation & geological history

Formed in the digestive tract of sperm whales to protect the intestine from sharp squid beaks. It oxidizes and hardens as it floats at sea for years or decades.

Uses & applications

Historical use as a perfume fixative (scent longevity). Today used in luxury high-end niche perfumery and as a rare collector's item.

Geological facts

Often called 'floating gold'. Fresh ambergris has a foul fecal smell, but aged ambergris develops a sweet, earthy, musky fragrance. It is one of the most valuable natural substances in the world.

Field identification & locations

Identify by a low melting point (melts to a dark liquid with a hot needle), ability to float in salt water, and a unique musky scent when heated. Found on beaches globally, especially after storms.