Tiffany stone
A variety of Fluorite
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About Tiffany stone
Formula:
CaF2
Colour:
Purple, blue purple
Lustre:
Sub-Vitreous, Resinous, Waxy, Greasy
Hardness:
4
Name:
Name of uncertain origin perhaps named for a Tiffany Harris of Utah. Folklore wrongly attributes the name to Tiffany and Company of New York which used purple colors in its decorative glassware.
A fine-grained purple to pale violet fluorite, usually with swirl patterns sometimes with small impurities of intergrown bertrandite, chalcedony, opal, and/or quartz.
Visit gemdat.org for gemological information about Tiffany stone.
Visit gemdat.org for gemological information about Tiffany stone.Unique Identifiers
Mindat ID:
46089 (as Tiffany stone)
1576 (as Fluorite)
1576 (as Fluorite)
Long-form identifier:
mindat:1:1:46089:1 (as Tiffany stone)
mindat:1:1:1576:5 (as Fluorite)
mindat:1:1:1576:5 (as Fluorite)
Physical Properties of Tiffany stone
Sub-Vitreous, Resinous, Waxy, Greasy
Transparency:
Translucent, Opaque
Colour:
Purple, blue purple
Comment:
May be variegated
Streak:
White
Hardness:
4 on Mohs scale
Hardness Data:
Mohs hardness reference species
Comment:
May be harder than 4 with high silicate mineral contents
Tenacity:
Brittle
Cleavage:
Perfect
{111}, Usually not observed due to fine-grained nature
{111}, Usually not observed due to fine-grained nature
Fracture:
Irregular/Uneven, Sub-Conchoidal
Chemistry of Tiffany stone
Mindat Formula:
CaF2
Elements listed:
Common Associates
Associations Based on Photo Data:
| 13 photos of Tiffany stone associated with 'Opal-AN' | SiO2 · nH2O |
| 11 photos of Tiffany stone associated with Bertrandite | Be4(Si2O7)(OH)2 |
| 6 photos of Tiffany stone associated with Fluorite | CaF2 |
| 2 photos of Tiffany stone associated with 'Chalcedony' | SiO2 |
| 1 photo of Tiffany stone associated with 'Hyalite' | SiO2 · nH2O |
| 1 photo of Tiffany stone associated with Calcite | CaCO3 |
| 1 photo of Tiffany stone associated with Dolomite | CaMg(CO3)2 |
Fluorescence of Tiffany stone
The essential mineral in tiffany stone, fluorite, is not fluorescent, but impurities such as opal, etc. many fluoresce green or other colors.
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Industrial Uses:
Used as a decorative material
Internet Links for Tiffany stone
mindat.org URL:
https://www.mindat.org/min-46089.html
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Please feel free to link to this page.
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References for Tiffany stone
Reference List:
Localities for Tiffany stone
Showing 2 localities.
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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.
USA | |
| Brian Cowger |
| Brian Cowger |
Brush Wellman Mine, Spor Mountain Mining District, Thomas Range, Juab County, Utah, USA