Fluorite with Calcite


Collection: Geology & Paleontology

Catalogue number: M-3165

Chemical class: Halide
Crystal type: Octohedron
Specimen type: Mineral specimen
Location: Illinois, USA


Product Description

Fluorite has been called the most colourful mineral in the world. This specimen was collected at Cave-in-Rock, Illinois, a location famous for its minerals. It is mainly purple and coated with clear to yellowish calcite crystals, but fluorite can also be many other colours such as pink, blue, green, or yellow. Fluorite is the mineral form of calcium fluoride, but other elements are often present, and this contributes to the myriad of colour variations. Fluorite is used as a flux for smelting, as a source of fluorine, or as lenses in microscopes and telescopes. Due to all of its wonderful variations, it is the second most popular mineral for collecting.

$100 adoption includes:

  • 1 year adoption
  • Certificate & photo
  • Opportunity to share personal story or description of what the specimen means to you
  • Tax receipt for $100