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Fluorite is a natural crystalline
that is transparent to transluscent, glassy mineral. When pure,
fluorite is colorless; however, it usually contains impurities
that color it. These impurities produce the most stricking bouquet
of billant colors. The range of common colors for fluorite start
from the hallmark color purple, then blue, green, yellow, colorless,
brown, pink, black and reddish orange. Flourite has earned the
reputation as the most colorful mineral in the world.
Two of its most interesting properties are flourescent and thermoluminescence.
The flourescent property makes flourite fluoresces under UV light
producing a kaliedescope of different colors. The second property,
thermoluminescence means the ability to glow when heated, although
this is a rare phenomenon.
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