Calcite and Fluorite with Phantoms, Yaogangxien, China

From Yaogangxien, Hunan, China, clear calcite cubes sitting on a bed of green fluorite. Under shortwave, the calcite shows small phantoms in some of the cubes. Interestingly, they're not there in midwave. Not incredibly bright under long wave, displaying a faint purple hue, which may be a combination of calcite and reflection. Under shortwave, there's a bit of bright blue on the bottom. No idea what it could be. Piece is about 6 inches by 4 inches and weighs just under two pounds. Images are shortwave, midwave, long wave and natural.

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