Queitite Mineral Data

Queitite Mineral Data
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General Queitite Information

Help on Chemical Formula: Chemical Formula: Pb4Zn2(SiO4)(Si2O7)(SO4)
Help on Composition: 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
Help on Empirical Formula: Empirical Formula: Pb4Zn2(SiO4)(Si2O7)(SO4)
Help on Environment: Environment: On corroded sulfides in a partially oxidized lead ore from a dolostone-hosted hydrothermal polymetallic ore deposit.
Help on IMA Status: IMA Status: Approved IMA 1979
Help on Locality: Locality: Tsumeb, Namibia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Clive Sedric Queit, mineral dealer of Tsumeb, Namibia.
Help on Name Pronunciation: Name Pronunciation: Queitite Say QUEITITE
Help on Synonym: Synonym: ICSD 100296
  PDF 33-782
 

Queitite Image

Click Here for Larger Queitite Image in a New Browser Window Images:
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Queitite

Comments: White earthy queitite masses on quartz.
Location: Tombstone, Cochise County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Queitite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.1576:1:2.4025
Help on Cell Dimensions: Cell Dimensions: a = 11.362, b = 5.266, c = 12.652, Z = 2; beta = 108.16° V = 719.29 Den(Calc)= 6.08
Help on Crystal System: Crystal System: Monoclinic - SphenoidalH-M Symbol (2) Space Group: P 21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.18(1), 1.635(0.8), 1.49(0.6),
Click Here for Large Queitite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Hess H , Keller P , Zeitschrift fur Kristallographie , 151 (1980) p.287-299, Die kristallstruktur von queitit, Pb4Zn2[SO4|SiO4|Si2O7], Locality: Tsumeb mine, Namibia

 

Physical Properties of Queitite

Help on Cleavage: Cleavage: {010} Indistinct, {001} Indistinct
Help on Color: Color: Colorless, White, Light yellow.
Help on Density: Density: 6.07
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Greasy (Oily)
Help on Streak: Streak: white
 

Optical Properties of Queitite

Help on Gladstone-Dale: 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
Help on Optical Data: 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

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.22 gm/cc
note: Specific Gravity of Queitite =6.07 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.14
Boson Index = 0.86
Help on Photoelectric: Photoelectric: PEQueitite =1,129.90 barns/electron
U=PEQueitite x rElectron Density=5,900.04 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Queitite is Not Radioactive
 

Queitite Classification
Help on Dana Class: 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
 
58.01.03.01 Queitite Pb4Zn2(SiO4)(Si2O7)(SO4) P 21 2
Help on Strunz Class: Strunz Class: 09.BF.20 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BF -Sorosilicates with mixed SiO4 and Si2O7 groups;
 
09.BF.20 Queitite Pb4Zn2(SiO4)(Si2O7)(SO4) P 21 2
 

Other Queitite Information
Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: 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 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Queitite Specimen Label here :

Queitite

Pb4Zn2(SiO4)(Si2O7)(SO4)
Dana No: 58.01.03.01 Strunz No: 09.BF.20
Locality:

 

Notes: