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Griceite Mineral Data
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General Griceite Information
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 Chemical Formula: |
LiF |
| Composition: |
Molecular Weight = 25.94 gm |
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Lithium 26.76 % Li 57.60 % Li2O |
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Fluorine 73.24 % F 73.24 % F |
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- %
F -30.84 % -O=F2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
LiF |
| Environment: |
In a sodalite inclusion in nepheline syenite. |
| IMA Status: |
Approved IMA 1989 |
| Locality: |
Proudrette quarry, Mt. St. Hilaire, Quebec, Canada. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Joel D. Grice (1946-), curator of minerals, Canadian Museum of Hature, Ottawa, Canada. |
| Name Pronunciation: |
Griceite  |
| Synonym: |
ICSD 62361 |
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IMA1986-043 |
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PDF 45-1460 |
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Griceite Image |
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Images:
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Griceite Villiaumite
Comments: White aggregates of griceite with pinkish villiaumite.
Location: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mt Saint-Hilaire, Rouville Co., Québec, Canada.
Scale: Picture size 3.5 mm.
© Thomas Witzke / Abraxas-Verlag |
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Griceite Crystallography
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| Cell Dimensions: |
a = 4.027, Z = 4; V = 65.30 Den(Calc)= 2.64 |
| Crystal System: |
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F m3m |
| X Ray Diffraction: |
By Intensity(I/Io): 2.01(1), 2.32(0.9), 1.424(0.5),0.822(0.1), 0.9(0.1), 0.924(0.1), 1.163(0.1), 1.213(0.1), |
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Physical Properties of Griceite
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| Cleavage: |
{100} Good, {100} Good, {100} Good |
| Color: |
Green white, Yellowish white, White. |
| Density: |
2.62 |
| Diaphaneity: |
Translucent |
| Fracture: |
Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments. |
| Habit: |
Inclusions - Generally found as inclusions in other minerals. |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Hardness: |
4.5 - Between Fluorite and Apatite |
| Luminescence: |
Sometimes Fluorescent, Short UV=light yellow. |
| Luster: |
Vitreous - Dull |
| Streak: |
white |
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Optical Properties of Griceite
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| Optical Data: |
Isotropic, n=1.392. |
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Calculated Properties of Griceite
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| Electron Density: |
Bulk Density (Electron Density)=2.44 gm/cc
note: Specific Gravity of Griceite =2.64 gm/cc.
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| Fermion Index: |
Fermion Index = 0.02
Boson Index = 0.98 |
| Photoelectric: |
PEGriceite = 0.51 barns/electron
U=PEGriceite x rElectron Density= 1.26 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Griceite is Not Radioactive |
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Griceite Classification
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| Dana Class: |
09.01.01.05 (09)Anhydrous and Hydrated Halides |
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(09.01)where A X |
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(09.01.01)Halite Group |
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09.01.01.01 Halite NaCl F m3m 4/m 3 2/m |
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09.01.01.02 Sylvite KCl F m3m 4/m 3 2/m |
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09.01.01.03 Villiaumite NaF F m3m 4/m 3 2/m |
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09.01.01.04 Carobbiite KF F m3m 4/m 3 2/m |
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09.01.01.05 Griceite LiF F m3m 4/m 3 2/m |
| Strunz Class: |
03.AA.20 03 - HALIDES |
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03.A - Simple Halides, Without H2O |
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03.AA -M:X = 1:1, 2:3, 3:5, etc. |
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03.AA.20 Carobbiite KF F m3m 4/m 3 2/m |
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03.AA.20 Griceite LiF F m3m 4/m 3 2/m |
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03.AA.20 Halite NaCl F m3m 4/m 3 2/m |
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03.AA.20 Sylvite KCl F m3m 4/m 3 2/m |
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03.AA.20 Villiaumite NaF F m3m 4/m 3 2/m |
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Other Griceite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) |
| See Also: |
Links to other databases for Griceite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info
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Griceite
LiF
Dana No: 09.01.01.05 Strunz No: 03.AA.20
Locality:
Notes:
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