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General Queitite Information |
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 Chemical Formula: |
Pb4Zn2(SiO4)(Si2O7)(SO4) | ||
| Composition: |
Molecular Weight = 1,315.89 gm | ||
| Zinc 9.94 % Zn 12.37 % ZnO | |||
| Silicon 6.40 % Si 13.70 % SiO2 | |||
| Lead 62.98 % Pb 67.85 % PbO | |||
| Sulfur 2.44 % S 6.08 % SO3 | |||
| Oxygen 18.24 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Pb4Zn2(SiO4)(Si2O7)(SO4) | ||
| Environment: |
On corroded sulfides in a partially oxidized lead ore from a dolostone-hosted hydrothermal polymetallic ore deposit. | ||
| IMA Status: |
Approved IMA 1979 | ||
| Locality: |
Tsumeb, Namibia. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for Clive Sedric Queit, mineral dealer of Tsumeb, Namibia. | ||
| Name Pronunciation: |
Queitite  |
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| Synonym: |
ICSD 100296 | ||
| PDF 33-782 | |||
Queitite Image | |||
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Images:
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Queitite Crystallography |
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| Axial Ratios: |
a:b:c =2.1576:1:2.4025 | ||
| Cell Dimensions: |
a = 11.362, b = 5.266, c = 12.652, Z = 2; beta = 108.16° V = 719.29 Den(Calc)= 6.08 | ||
| Crystal System: |
Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 21 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.18(1), 1.635(0.8), 1.49(0.6), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Queitite |
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| Cleavage: |
{010} Indistinct, {001} Indistinct | ||
| Color: |
Colorless, White, Light yellow. | ||
| Density: |
6.07 | ||
| Hardness: |
4 - Fluorite | ||
| Luster: |
Greasy (Oily) | ||
| Streak: |
white | ||
Optical Properties of Queitite |
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| Gladstone-Dale: |
CI meas= 0.004 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.006 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1482,KPDmeas= 0.1484,KC= 0.149 Ncalc = 1.9 - 1.91 |
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| Optical Data: |
Biaxial (+), a=1.899, b=1.901, g=1.903, bire=0.0040, 2V(Calc)=88, 2V(Meas)=90. | ||
Calculated Properties of Queitite |
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| Electron Density: |
Bulk Density (Electron Density)=5.22 gm/cc note: Specific Gravity of Queitite =6.07 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.14 Boson Index = 0.86 |
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| Photoelectric: |
PEQueitite =1,129.90 barns/electron U=PEQueitite x rElectron Density=5,900.04 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Queitite is Not Radioactive |
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Queitite Classification |
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| Dana Class: |
58.01.03.01 (58)Sorosilicate Insular, Mixed, Single, and Larger Tetrahedral Groups | ||
| (58.01)with cations in [4] and higher coordination; single and double groups (n=1,2) | |||
| (58.01.03)Dana Group | |||
| Strunz Class: |
09.BF.20 09 - SILICATES (Germanates) | ||
| 09.B - Sorosilicates | |||
| 09.BF -Sorosilicates with mixed SiO4 and Si2O7 groups; | |||
Other Queitite Information |
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| References: |
NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Queitite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Queitite using: Visit our Advertisers for Queitite : A Bijoux Google Search for QueititeAdam's Minerals Google Search for Queitite Cape Minerals Google Search for Queitite Dakota Matrix Minerals Google Search for Queitite Excalibur Mineral Corp. Google Search for Queitite Exceptional Minerals Google Search for Queitite John Betts Fine Minerals Search for Queitite McDougall Minerals Google Search for Queitite Mineral News Website Link Rock and Mineral Shows Google Search for Queitite Weinrich Minerals, Inc. Google Search for Queitite Ask about Queitite here : Print or Cut-and-Paste your Queitite Specimen Label here :
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