Bismuth Crystal Star (Lab Grown)– Iridescent Hopper Crystals Dimensions: 8.8 x 8.6 x 1.6 cm
A striking star-shaped formation of lab-grown bismuth, covered in intricate geometric hopper crystals. Its reflective metallic surface has iridescent shades of gold, silver, pale green, pink, and subtle blue that shift with the angle of the light.
Bismuth is a naturally occurring metallic element. These distinctive crystals are produced by melting bismuth and allowing it to cool and crystallize, creating the characteristic stair-step and square hopper formations. A thin oxide layer that develops on the surface during cooling produces its colorful iridescence.
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.
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