Fluorite on hyalite reportedly from the La Lupita Mine in Durango, Chihuahua, Mexico. Pictured
Fluorite on hyalite reportedly from the La Lupita Mine in Durango, Chihuahua, Mexico. Pictured under short wave + long wave ultraviolet, white light, short wave only, and long wave only. The hyalite is best under short wave uv and the fluorite is best under long wave uv. -- source link
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