Fluor-uvite (original) (raw)
A valid IMA mineral species - grandfathered
About Fluor-uviteHide
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Formula:
CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F
Colour:
Black, greenish-black, brownish-black, brown, green, colourless
Specific Gravity:
2.97 - 3.14
Name:
Named in 1929 by Wilhelm Kunitz for the type locality, Uva Province, Sri Lanka. Chemical pre-fix added by IMA in 2008.
Co-Type Localities:
ⓘ Franklin, Sussex County, New Jersey, USA
ⓘ Fowler Quarry (Nichol Quarry; B. Nicoll Quarry; Nicoll Quarry; Nicol Quarry; Cellate Quarry), Franklin Marble, Franklin, Sussex County, New Jersey, USA
ⓘ Franklin Quarry, Franklin Marble, Franklin, Sussex County, New Jersey, USA
ⓘ Franklin Mine, Franklin, Sussex County, New Jersey, USA
The F-analogue of (the much rarer) uvite.
See uvite series for more information on the nomenclature revisions of uvite.
NOTE: Most of the numerous "uvites/fluor-uvites" from Brumado, Bahia, Brazil, require individual confirmation.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:43562:8
37d854b1-ddd1-4d89-a7d0-cc7529f3cbea
IMA Classification of Fluor-uviteHide
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Approved, 'Grandfathered' (first described prior to 1959)
Classification of Fluor-uviteHide
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9.CK.05
9 : SILICATES (Germanates)
C : Cyclosilicates
K : [Si6O18]12- 6-membered single rings, with insular complex anions
61.3.1.3
61 : CYCLOSILICATES Six-Membered Rings
3 : Six-Membered Rings with borate groups
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Fluvt | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Fluor-uviteHide
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Colour:
Black, greenish-black, brownish-black, brown, green, colourless
Streak:
Light-brown, light-green, or white
Density:
2.97 - 3.14 g/cm3 (Measured) 3.08 g/cm3 (Calculated)
Optical Data of Fluor-uviteHide
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RI values:
_n_ω = 1.637 - 1.668 _n_ε = 1.619 - 1.639
δ = 0.018 - 0.029
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Comments:
O= pale yellow
E= colorless
Chemistry of Fluor-uviteHide
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Mindat Formula:
CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F
Common Impurities:
Mn,Ti,Na,Cr,V,Zn,H2O
Crystallography of Fluor-uviteHide
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Class (H-M):
3_m_ - Ditrigonal Pyramidal
Cell Parameters:
a = 15.954(1) Å, c = 7.214(1) Å
Unit Cell V:
1,590.18 ų (Calculated from Unit Cell)
Morphology:
Prismatic to equant crystals, tabular, pyramidal, radiating groups.
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0005436 | Fluor-uvite | MacDonald D J, Hawthorne F C (1995) The crystal chemistry of Si=Al substitution in tourmaline The Canadian Mineralogist 33 849-858 |  |
1995 | East Africa | 0 | 293 |
| 0005437 | Fluor-uvite | MacDonald D J, Hawthorne F C (1995) The crystal chemistry of Si=Al substitution in tourmaline The Canadian Mineralogist 33 849-858 | |
1995 | East Africa | 0 | 293 |
| 0005438 | Fluor-uvite | MacDonald D J, Hawthorne F C (1995) The crystal chemistry of Si=Al substitution in tourmaline The Canadian Mineralogist 33 849-858 | |
1995 | East Africa | 0 | 293 |
| 0005439 | Fluor-uvite | MacDonald D J, Hawthorne F C (1995) The crystal chemistry of Si=Al substitution in tourmaline The Canadian Mineralogist 33 849-858 | |
1995 | East Africa | 0 | 293 |
| 0005440 | Fluor-uvite | MacDonald D J, Hawthorne F C (1995) The crystal chemistry of Si=Al substitution in tourmaline The Canadian Mineralogist 33 849-858 | |
1995 | East Africa | 0 | 293 |
| 0005441 | Fluor-uvite | MacDonald D J, Hawthorne F C (1995) The crystal chemistry of Si=Al substitution in tourmaline The Canadian Mineralogist 33 849-858 | |
1995 | East Africa | 0 | 293 |
| 0005442 | Fluor-uvite | MacDonald D J, Hawthorne F C (1995) The crystal chemistry of Si=Al substitution in tourmaline The Canadian Mineralogist 33 849-858 | |
1995 | East Africa | 0 | 293 |
| 0005443 | Fluor-uvite | MacDonald D J, Hawthorne F C (1995) The crystal chemistry of Si=Al substitution in tourmaline The Canadian Mineralogist 33 849-858 | |
1995 | East Africa | 0 | 293 |
| 0005444 | Fluor-uvite | MacDonald D J, Hawthorne F C (1995) The crystal chemistry of Si=Al substitution in tourmaline The Canadian Mineralogist 33 849-858 | |
1995 | East Africa | 0 | 293 |
| 0018793 | Fluor-uvite | Grice J D, Ercit T S (1993) Ordering of Fe and Mg in the tourmaline crystal structure: The correct formula Neues Jahrbuch fur Mineralogie, Abhandlungen 165 245-266 | 1993 | Gouverneur, St. Lawrence Co., New York, USA | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 10.0 Å | (73) |
| 3.39 Å | (58) |
| 3.35 Å | (82) |
| 3.15 Å | (64) |
| 2.65 Å | (41) |
| 2.62 Å | (100) |
| 2.43 Å | (48) |
| 1.536 Å | (52) |
Geological EnvironmentHide
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Geological Setting:
Calcium-rich rocks subjected to contact metamorphism and addition of boron.
Type Occurrence of Fluor-uviteHide
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Co-Type Localities:
ⓘ Franklin, Sussex County, New Jersey, USA
ⓘ Fowler Quarry (Nichol Quarry; B. Nicoll Quarry; Nicoll Quarry; Nicol Quarry; Cellate Quarry), Franklin Marble, Franklin, Sussex County, New Jersey, USA
ⓘ Franklin Quarry, Franklin Marble, Franklin, Sussex County, New Jersey, USA
ⓘ Franklin Mine, Franklin, Sussex County, New Jersey, USA
Place of Conservation of Type Material:
Royal Ontario Museum, Toronto, Ontario, Canada.
Relationship of Fluor-uvite to other SpeciesHide
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Other Members of this group:
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Fluorescence of Fluor-uviteHide
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May show a weak mustard-yellow under SW
Other InformationHide
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Electrical:
Piezoelectric, pyroelectric
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 Fluor-uviteHide
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References for Fluor-uviteHide
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Reference List:
Henry, Darell J., Novak, Milan, Hawthorne, Frank C., Ertl, Andreas, Dutrow, Barbara L., Uher, Pavel, Pezzotta, Federico (2011) Nomenclature of the tourmaline-supergroup minerals. American Mineralogist, 96 (5) 895-913 doi:10.2138/am.2011.3636
Fantini, C., Tavares, M. C., Krambrock, K., Moreira, R. L., Righi, A. (2014) Raman and infrared study of hydroxyl sites in natural uvite, fluor-uvite, magnesio-foitite, dravite and elbaite tourmalines. Physics and Chemistry of Minerals, 41 (4) 247-254 doi:10.1007/s00269-013-0642-0
Localities for Fluor-uviteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.