Krauskopfite Mineral Data + 
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- 74.3.4.1 Sanbornite BaSi2O5 Pmnb 2/m 2/m 2/m
- 74.3.4.2 Krauskopfite BaSi2O4(OH)2·2(H2O) P 21/a 2/m
- VIII/F.25-10 Batisite BaNaNaTi2O2[Si4O12] Ima2 mm2
- VIII/F.25-20 Shcherbakovite KKNaTi2O(OH)[Si4O12] I mma 2/m 2/m 2/m
- VIII/F.25-30 Taikanite (Ba,Sr)2Mn2Si4O12 C 2 2
- VIII/F.25-40 Krauskopfite BaSi2O4(OH)2·2(H2O) P 21/a 2/m
- VIII/F.25-50 Ohmilite Sr3(Ti,Fe)(Si2O6)2(O,OH)·2-3(H2O) P 21/m 2/m
General Krauskopfite Information |
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 Chemical Formula: |
BaSi2O4(OH)2·2(H2O) | ||
| Composition: |
Molecular Weight = 327.54 gm | ||
| Barium 41.93 % Ba 46.81 % BaO | |||
| Silicon 17.15 % Si 36.69 % SiO2 | |||
| Hydrogen 1.85 % H 16.50 % H2O | |||
| Oxygen 39.08 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
BaSi2O4(OH)2·2(H2O) | ||
| IMA Status: |
Approved IMA 1965 | ||
| Locality: |
Big Creek - Rush Creek sanbornite deposit, 5 miles NE of Trimmer, Fresno Co., California. Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 26971 | ||
| PDF 18-192 | |||
Krauskopfite Image | |||
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Images:
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Krauskopfite Crystallography |
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| Axial Ratios: |
a:b:c =0.7964:1:0.7378 | ||
| Cell Dimensions: |
a = 8.46, b = 10.622, c = 7.837, Z = 4; beta = 94.53° V = 702.05 Den(Calc)= 3.10 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.84(1), 5.34(0.45), 6.36(0.45), | ||
Physical Properties of Krauskopfite |
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| Cleavage: |
[010] Perfect, [001] Perfect | ||
| Color: |
Colorless, White. | ||
| Density: |
3.14 | ||
| Diaphaniety: |
Transparent | ||
| Hardness: |
4 - Fluorite | ||
| Luster: |
Vitreous - Pearly | ||
| Streak: |
white | ||
Optical Properties of Krauskopfite |
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| Gladstone-Dale: |
CI meas= 0.029 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1892,KPDmeas= 0.1868,KC= 0.1923 |
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| Optical Data: |
Biaxial (-), a=1.574, b=1.587, g=1.599, bire=0.0250, 2V(Calc)=86, 2V(Meas)=88. | ||
Calculated Properties of Krauskopfite |
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| Electron Density: |
relectron=2.92 gm/cc |
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| Fermion Index |
Fermion Index = 0.08292 Boson Index = 0.91708 |
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| Photoelectric: |
PEKrauskopfite = 179.48 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Krauskopfite is Not Radioactive |
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Krauskopfite Classification |
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| Dana Class: |
74.3.4.2 (74)Phyllosilicate Modulated Layers | ||
| (74.3)with joined strips | |||
| (74.3.4)Ba phyllosilicates | |||
| Strunz Class: |
VIII/F.25-40 VIII - Silicates | ||
| VIII/F - Inosilicates (chain and band) Quadruplet chains [Si4O12]8- | |||
| VIII/F.25 - Batisite - Ohmilite series | |||
Other Krauskopfite Information |
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| References: |
NAME( MinRec) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Krauskopfite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Krauskopfite using: Visit our Advertisers for Krauskopfite : Translate Krauskopfite Mineral Data : Ask about Krauskopfite here : Print or Cut-and-Paste your Krauskopfite Specimen Label here :
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