Bismuth Crystal Heart (Lab Grown)– Iridescent Hopper Crystals

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Bismuth Crystal Heart (Lab Grown)– Iridescent Hopper Crystals
Dimensions: 10.0 × 9.5 × 0.7 cm

A striking heart-shaped formation of lab-grown bismuth, densely covered in sharply defined geometric hopper crystals. The open-centered heart is an intricate crystalline surface with metallic color shifting through gold, silver, pink, violet, green, and blue. Close inspection reveals the characteristic stepped, square growth patterns that make crystallized bismuth so distinctive.

Bismuth is a naturally occurring metallic element, but specimens like this are created by melting purified bismuth and allowing it to crystallize under controlled conditions. As the metal cools, its unusual hopper crystals develop, while a thin oxide layer on the surface produces the vivid iridescent coloration.

Disclosure: This bismuth crystal is human-grown (lab-grown) from bismuth metal and is not a naturally formed mineral specimen. Its distinctive geometric “hopper” crystal structure develops as molten bismuth cools and crystallizes. The iridescent surface colors are produced by a thin oxide layer that forms on the bismuth during cooling.