Name:

fluorite

A photo of the mineral fluorite

Class:

Halides

Chemistry:

CaF2 Calcium Fluroide

Color(s):

violet, blue, green, orange, yellow, pink, etc., Streak: white

Hardness:

4

SpecGrav:

3.0 - 3.2

Fracture:

conchoidal

Cleavage:

perfect

Crystal:

contact metamorphics, epithermal deposits, hydrothermal replacements

Envronment:

contact metamorphics, epithermal deposits, hydrothermal replacements

Association:

barite, apatite, calcite, galena, sphalerite, siderite

Locals:

| England | Illinois, Kentucky, Ohio, Colorado/USA | Mexico | Canada |

Misc:

Often violet, green, or blue fluorescence, dangerous to add acid - forms toxic HF, from the Latin "fluere", "to flow" (because it was used in ancient times as a flux)

Photos
& Locals:

1.) Fluorite on Sphalerite, Illinois
2.) Hardin County, Illinois
3.) Bluffton Quarry, Allen County, Ohio
4.) Bluffton Quarry, Allen County, Ohio (closeup)
5.) Bluffton Quarry, Allen County, Ohio (closeup)
6.) Bluffton Quarry, Allen County, Ohio (closeup) Fluorite and Sphalerite on dolomite
7.) Grant County, New Mexico
8.) Grant County, New Mexico (closeup)

9.) Santa Eulalia, Chihuahua, Mexico
10.) Santa Eulalia, Chihuahua, Mexico
11.) Elmwood Mine, Smith Co., Tennessee
12.) Elmwood Mine, Smith Co., Tennessee
13.) Tiao Ling Mine, Ling Xiang, Hunam, China
14.) Elmwood Mine, Smith Co., Tennessee
15.)

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