6.1" Deep Purple Cubic Fluorite - Cave-In-Rock, Illinois

 
This is a beautiful cluster of deep purple cubic fluorite crystals from the Cave-In-Rock district of Harden County, Illinois. There is minor damage to some of the crystals, however the majority of the crystals are in near pristine condition. This fluorite aggregation was broken free from its formation location, in a way that allows for natural aesthetic presentation.

Fluorite is a halide mineral comprised of calcium and fluorine, CaF2. The word fluorite is from the Latin fluo-, which means to flow. In 1852 fluorite gave its name to the phenomenon known as fluorescence, or the property of fluorite to glow a different color depending upon the bandwidth of the ultraviolet light it is exposed to. Fluorite occurs commonly in cubic, octahedral and dodecahedral crystals in many different colors. These colors range from colorless and completely transparent to yellow, green, blue, purple, pink or black. Purples and greens tend to be the most common colors seen.


Archaeological discoveries near the Cave-In-Rock mining district of beads and other ornaments made of fluorite have placed the use of the stone to about 900 years ago when the land was inhabited by the Native Mississippian Americans. Early European settlers mining for galena in the 1830's discarded the fluorite as the lead they sought was more valuable at the time. In the 1880's it was discovered that fluorite was very useful in a new steel-furnace technology, and demand increased considerably, and several commercial fluorite mining companies appeared in Illinois/Kentucky region.
FOR SALE
$65
DETAILS
SPECIES
Fluorite
LOCATION
Cave-In-Rock, Harden County, Illinois
SIZE
6.1" long, 3.9" tall
ITEM
#90981