mineral

Likely bismuth crystal

Synthetic bismuth (Bi), crystallized from molten metal; not a natural rock-forming specimen

AI-generated identification · may be incorrect

Silvery, strongly reflective, blocky stepped/terraced form; Mohs hardness about 2–2.5, metallic luster, and rhombohedral crystal structure. The image is small and blurred, so identification is provisional.

Identified October 10, 2026More mineral →

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Physical properties

Formation & geological history

Bismuth crystals of this geometric, stair-step appearance are typically grown by cooling purified molten bismuth; they are human-grown rather than formed naturally in this shape.

Uses & applications

Collected as a novelty mineral specimen and used in low-melting alloys and specialty materials; not generally used as a gemstone or building stone.

Geological facts

The vivid rainbow colors often seen on bismuth crystals come from a thin oxide film, though this specimen appears mostly silvery.

Field identification & locations

The terraced, hopper-like geometry and metallic sheen suggest bismuth; confirm by its unusually low density and brittleness, without tasting or heating it. Natural bismuth is rare and usually occurs in ores.