Fluorite from Minerva No. 1 Mine, Hardin County, Illinois, USA - image 1
Photo by Laszlo Kupi Fine Mineral Photography

Fluorite from Minerva No. 1 Mine, Hardin County, Illinois, USA

Blue fluorite crystals with yellow cores, 23.4 cm, from the Minerva No. 1 mine, Hardin County, Illinois. Ex collections of Hubert de Monmonier (1917–2007) and the University of Arizona Mineral Museum; László Kupi photo.

Product details

SpeciesFluorite
SizeLarge Cabinet
Dimensions23.4 cm
Added on03/26/2026
LocalityUSA, Illinois, Minerva No. 1 Mine
Publications
  • Mineralogical Record The Kevin Brown Collection page 116
Current owner
Kevin Brown
Kevin Brown
Parker, TX
Member since 2026
Previous owners
DateCollectorAcquisition price
—Hubert de MonmonierNot disclosed

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Fluorite
Mineral guide
Learn about Fluorite
calcium fluoride with a dazzling color range, cubic and octahedral crystals, and UV fluorescence; prized by collectors for Blue John banding.
Fluorite
Regional guide
Fluorite from Minerva No. 1 Mine
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Locality guide
Minerva No. 1 Mine
A collector's guide to Minerva No. 1 Mine, USA: its geology, mining history and notable minerals, illustrated with the 725 specimens documented from this locality on EarthWonders.