Chlorophane
A variety of Fluorite
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About Chlorophane
Formula:
CaF2
Colour:
Reddish pink, red, red-brown, purple, green, smoky, colorless
Lustre:
Vitreous, Resinous
Hardness:
4
Crystal System:
Isometric
A variety of fluorite that exhibits green short-wave and medium-wave fluorescence and afterglow, violet long-wave fluorescence and green thermoluminescence.
Originally described from Siberia, Russia.
Originally described from Siberia, Russia.
Unique Identifiers
Mindat ID:
948 (as Chlorophane)
1576 (as Fluorite)
1576 (as Fluorite)
Long-form identifier:
mindat:1:1:948:7 (as Chlorophane)
mindat:1:1:1576:5 (as Fluorite)
mindat:1:1:1576:5 (as Fluorite)
Physical Properties of Chlorophane
Vitreous, Resinous
Transparency:
Transparent, Translucent
Colour:
Reddish pink, red, red-brown, purple, green, smoky, colorless
Comment:
Color fades upon prolonged exposure to light.
Streak:
White
Hardness:
4 on Mohs scale
Cleavage:
Perfect
Perfect on {111}
Perfect on {111}
Fracture:
Sub-Conchoidal
Chemistry of Chlorophane
Mindat Formula:
CaF2
Elements listed:
Crystallography of Chlorophane
Crystal System:
Isometric
Morphology:
Typically massive. Octahedral microcrystals and cubic macrocrystals are very rare.
Geological Environment
Geological Setting:
Rare-element pegmatites and hypothermal mineral veins.
Synonyms of Chlorophane
Common Associates
Associated Minerals Based on Photo Data:
| 45 photos of Chlorophane associated with Albite | Na(AlSi3O8) |
| 36 photos of Chlorophane associated with Fluorapatite | Ca5(PO4)3F |
| 27 photos of Chlorophane associated with Quartz | SiO2 |
| 23 photos of Chlorophane associated with Muscovite | KAl2(AlSi3O10)(OH)2 |
| 12 photos of Chlorophane associated with Willemite | Zn2SiO4 |
| 10 photos of Chlorophane associated with Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| 9 photos of Chlorophane associated with Sphalerite | ZnS |
| 9 photos of Chlorophane associated with 'Apatite' | Ca5(PO4)3(Cl/F/OH) |
| 7 photos of Chlorophane associated with 'Calciomicrolite' | |
| 5 photos of Chlorophane associated with Topaz | Al2(SiO4)(F,OH)2 |
Fluorescence of Chlorophane
Grey-green, green to blue-green short-wave and medium-wave and afterglow, violet long-wave fluorescence (NOTE: prolonged exposure to light changes the green fluorescence to the same violet as shown under long-wave.)
Other Information
Magnetism:
Non-Magnetic
Thermal Behaviour:
Shows blue-green thermoluminescence, some of it sensitive enough to show it while hand-held in the dark.
Special Storage/
Display Requirements:
Display Requirements:
To prevent the degradation of the blue-green fluorescence, store in a light-tight container.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Chlorophane
mindat.org URL:
https://www.mindat.org/min-948.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
Mineral Dealers:
References for Chlorophane
Reference List:
Localities for Chlorophane
Showing 27 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
China | |
| Herschel Ward |
Russia | |
| "Traité de Minéralogie" by Abbe Haüy | |
UK | |
| Royal Cornwall Polytechnic Society (1870) +1 other reference |
| Phillips (1823) +2 other references |
USA | |
| |
| Luetcke (n.d.) |
| James Christopher |
| Januzzi et al. (1976) |
| Moritz (n.d.) |
| Hitchcock (1826) +4 other references | |
| Kevin Czaja Collection | |
| Mike Polletta specimen | |
| Kevin Czaja Collection |
| Zodac (1940) +2 other references |
| Eric Briggs | |
| Richard Schooner collection |
| Hewitt (circa 1960s) +1 other reference | |
| Kevin Czaja Collection |
| Dan Fountain collection |
| Andrew Kruegel |
| |
| www.mcrocks.com |
| AmMin 11:334-340 |
| Franklin Roberts |
| Art Smith (2008) |
| AmMin 3:27-28 (1918) |
| Dietrich (1990) |
Buckwheat dump mineral collecting site, Franklin Mine, Franklin, Sussex County, New Jersey, USA