Fluorite

Incredible specimen of naturally iridescent fluorite!  Be sure to check the video, which was taken in overcast weather.  The oxidized surface appears iridescent due to thin film interference, a naturally occurring phenomenon when minerals are exposed to high heat or potentially acidic environments.  The luster is excellent and most of the cubic fluorite crystals present an iridescent surface.  The crystals are also well formed and quite large for this deposit, one of the better specimens of this type we have ever seen in person.  From Skardu Valley, Pakistan.  Acquired Summer, 2024.
 
We recommend purchasing the medium adjustable mineral stand to accompany this piece.  Please contact us with any questions.
 
Fluorite is a highly prized mineral among collectors due to its remarkable range of colors, crystal clarity, and unique properties. This calcium fluoride mineral crystallizes in the isometric system, often forming well-defined cubes. Ill-defined cubes, and occasionally octahedral shapes. Its colors span a broad spectrum, including vivid purples, greens, blues, yellows, and colorless varieties, with some specimens showcasing multiple colors in striking bands or zones. 
 
Many fluorite specimens are also fluorescent, glowing in shades of blue or purple under ultraviolet light, adding an extra layer of fascination. Found in hydrothermal veins, sedimentary deposits, and igneous rocks, notable sources of collectible fluorite include China, England, Mexico, and the United States. Its vibrant colors, distinct crystal forms, and fluorescent qualities make fluorite a standout addition to any mineral collection.