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and accents of rainbow iridescence — represents late-stage
on quartz matrix
Corundum (Ruby/Sapphire) from Madagascar
with its warm-toned microcrystalline texture
Fluorite and quartz from Yindu Mine
Rainbow‑Tarnished Cubic Fluorite 5 miner and accents of rainbow iridescenceRainbowTarnished Cubic Fluorite from Weishan Yi and Hui Autonomous County, Dali City, Yunnan Province, China This cubicform fluorite specimen features neatlyshaped cubic crystals forming dense aggregates. A thin ironoxide film across crystal surfaces creates iridescent tarnish through lightwave interference under ambient light. Backlight illumination reveals translucent purplehued interiors, with welldefined zoning textures inside individual crystals.