Questions and phone orders: 10 AM - 10 PM Pacific (760) 920-6465
1 left

fluorite - massive fluorite - a mineral often associated with metallic ore deposits - display specimen

$ 15.00

fluorite - calcium fluoride: CaF2

Fluorite is frequently a gangue mineral with metallic ores. “Gangue” describes uneconomic minerals that are associated with ores. This is massive fluorite that capped a vein that is currently being mined.

Used as a flux in the manufacture of steel, fluorite derives its name from the Latin fluere, to flow, since it melts at a low temperature compared with other minerals with which it is confused.

Circa 1852, Sir George Stokes, mathematics professor at the University of Cambridge, coined the term fluorescence, from the property of fluorite from some locations.

Fluorite varies widely in color, most commonly Coke-bottle green, yellow, bluish green and purple. Its hardness is 4 on the Mohs Scale of Mineral Hardness.

Good fluorite has been difficult to obtain. Either the specimens are raggedy by the time we see them or they are far too expensive, or both. This massive fluorite was discovered in 2022 as boulders on a hillside near Mapimi, Durango, Mexico, that were actually the top of a vein. These specimens were carefully broken from the boulders and occasionally have some country rock attached. The miners are currently working the vein and we are not sure if we will be able to get more.

The pencil is 5 1/2 inches long, for scale. Spectacular massive fluorite.


Making multiple purchases? Click on the "combine shipping" button in the shopping cart. We'll send an invoice with combined shipping. A link in that invoice will bring you back to checkout, no hassle.

Shipping: By Priority Mail or Parcel Select Ground, whichever is cheaper. Click > here < for shipping rates. See comment at Note! Use back button to return to this page.