Fluoborite Mineral Data + 
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- 25.1.2.1 Fluoborite Mg3(BO3)(F,OH)3 P 63/m 6/m
- V/G.05-10 Fluoborite Mg3(BO3)(F,OH)3 P 63/m 6/m
- V/G.05-20 Karlite! (Mg,Al)6(BO3)3(OH,Cl)4 P 212121 2 2 2
- V/G.05-30 Jeremejevite Al6B5O15(F,OH)3 P 63/m 6/m
- V/G.05-40 Painite CaZrB[Al9O18] P 63/m 6/m
General Fluoborite Information |
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 Chemical Formula: |
Mg3(BO3)(F,OH)3 | ||
| Composition: |
Molecular Weight = 168.72 gm | ||
| Magnesium 43.22 % Mg 71.66 % MgO | |||
| Boron 6.41 % B 20.63 % B2O3 | |||
| Hydrogen 0.30 % H 2.67 % H2O | |||
| Oxygen 33.19 % O | |||
| Fluorine 16.89 % F 16.89 % F | |||
| - % F -7.11 % -O=F2 | |||
| ______ ______ | |||
| 100.00 % 104.74 % = TOTAL OXIDE | |||
| Empirical Formula: |
Mg3(BO3)F1.5(OH)0.5 | ||
| IMA Status: |
Valid Species (Pre-IMA) 1926 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 4226 | ||
| PDF 19-468 | |||
Fluoborite Image | |||
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Images:
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Fluoborite Crystallography |
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| Axial Ratios: |
a:c = 1:0.34905 | ||
| Cell Dimensions: |
a = 8.924, c = 3.115, Z = 2; V = 214.84 Den(Calc)= 2.61 | ||
| Crystal System: |
Hexagonal - DipyramidalH-M Symbol (6/m) Space Group: P 63/m | ||
| X Ray Diffraction: |
By Intensity(I/Io): 4.41(1), 2.41(0.95), 2.12(0.9), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Fluoborite |
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| Cleavage: |
[0001] Indistinct | ||
| Color: |
Colorless, Violet, White. | ||
| Density: |
2.89 | ||
| Diaphaniety: |
Transparent | ||
| Hardness: |
3.5 - Copper Penny | ||
| Luminescence: |
Non-fluorescent. | ||
| Luster: |
Vitreous - Silky | ||
| Magnetism: |
Nonmagnetic | ||
| Streak: |
white | ||
Optical Properties of Fluoborite |
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| Gladstone-Dale: |
CI meas= 0.067 (Fair) - where the CI = (1-KPDmeas/KC) CI calc= -0.033 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2115,KPDmeas= 0.191,KC= 0.2047 |
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| Optical Data: |
Uniaxial (-), e=1.534, w=1.57, bire=0.0360. | ||
Calculated Properties of Fluoborite |
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| Electron Density: |
relectron=2.57 gm/cc |
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| Fermion Index |
Fermion Index = 0.05612 Boson Index = 0.94388 |
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| Photoelectric: |
PEFluoborite = 1.10 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Fluoborite is Not Radioactive |
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Fluoborite Classification |
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| Dana Class: |
25.1.2.1 (25)Anhydrous Borates Containing Hydroxyl or Halogen | ||
| (25.1)Dana Type | |||
| (25.1.2)Dana Group | |||
| Strunz Class: |
V/G.05-10 V - Nitrates, Carbonates and Borates | ||
| V/G - "Insel" borates [BO3]3- "inseln" | |||
| V/G.05 - Fluoborite - Painite series | |||
Other Fluoborite Information |
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| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Fluoborite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 - Franklin Minerals(Palache) 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - Scandinavian mineral gallery 15 - WWW-MINCRYST 16 -École des Mines de Paris Search for Fluoborite using: Visit our Advertisers for Fluoborite : Translate Fluoborite Mineral Data : Ask about Fluoborite here : Print or Cut-and-Paste your Fluoborite Specimen Label here :
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