Zincovoltaite Mineral Data

Zincovoltaite Mineral Data
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General Zincovoltaite Information

Help on Chemical Formula: Chemical Formula: K2Zn5Fe+++3Al(SO4)12•18(H2O)
Help on Composition: Composition: Molecular Weight = 2,076.71 gm
   Potassium   3.77 %  K     4.54 % K2O
   Aluminum    1.30 %  Al    2.45 % Al2O3
   Zinc       15.74 %  Zn   19.60 % ZnO
   Iron        8.07 %  Fe   11.53 % Fe2O3
   Hydrogen    1.75 %  H    15.61 % H2O
   Sulfur     18.53 %  S    46.26 % SO3
   Oxygen     50.85 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K2Zn5Fe3+3Al(SO4)12•18(H2O)
Help on Environment: Environment: Oxidation zone of a Zn-Pb-Fe sulfide deposit, formed in an arid climate.
Help on IMA Status: IMA Status: Approved IMA 1987
Help on Locality: Locality: Xitieshan Pb–Zn mine, south of Mt. Qilianshan, Chaidamu, Qinghai Province, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the zinc analog of voltaite.
Help on Name Pronunciation: Name Pronunciation: Zincovoltaite + Pronunciation Say ZINCOVOLTAITE
 

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Zincovoltaite Crystallography
Help on Cell Dimensions: Cell Dimensions: a = 27.18, Z = 16; V = 20,079.29 Den(Calc)= 2.75
Help on Crystal System: Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.39(1), 3.54(0.67), 5.53(0.48),
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Forms: ( 2 1 1) ( 1 1 0)

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Physical Properties of Zincovoltaite

Help on Cleavage: Cleavage: None
Help on Color: Color: Green, Greenish black, Black.
Help on Density: Density: 2.756
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous - Resinous
Help on Streak: Streak: gray green
 

Optical Properties of Zincovoltaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.015 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.017 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.22,KPDmeas= 0.2195,KC= 0.2162
Ncalc = 1.59 - 1.6
Help on Optical Data: Optical Data: Isotropic, n=1.605.
 

Calculated Properties of Zincovoltaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.75 gm/cc
note: Specific Gravity of Zincovoltaite =2.76 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0098061224
Boson Index = 0.9901938776
Help on Photoelectric: Photoelectric: PEZincovoltaite = 11.50 barns/electron
U=PEZincovoltaite x relectron= 31.59 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 54.16 (Gamma Ray American Petroleum Institute Units)
Concentration of Zincovoltaite per GRapi unit = 1.85 (%)

Estimated Radioactivity from Zincovoltaite - barely detectable

 

Zincovoltaite Classification
Help on Dana Class: Dana Class: 29.09.01.02 (29)Hydrated Acid and Sulfates
  (29.09)with miscellaneous formulae
  (29.09.01)Voltaite Group
 
29.09.01.01 Voltaite K2Fe5Fe3Al(SO4)12•18(H2O) F d3c 4/m 3 2/m
 
29.09.01.02 Zincovoltaite K2Zn5Fe3Al(SO4)12•18(H2O) F d3c 4/m 3 2/m
 
29.09.01.03 Pertlikite! K2(Fe,Mg)2(Mg,Fe)4Fe2Al(SO4)12•18H2O I 41/acd 4/m 2/m 2/m
Help on Strunz Class: Strunz Class: 07.CC.25 07 - SULFATES (SELENATES, TELLURATES)
  07.C - Sulfates (selenates, etc.) without Additional Anions, with H2O
  07.CC -With medium-sized and large cations
 
07.CC.25 Monsmedite? H8K2Tl2(SO4)8•11(H2O) F d3c 4/m 3 2/m
 
07.CC.25 Voltaite K2Fe5Fe3Al(SO4)12•18(H2O) F d3c 4/m 3 2/m
 
07.CC.25 Zincovoltaite K2Zn5Fe3Al(SO4)12•18(H2O) F d3c 4/m 3 2/m
 
07.CC.25 Pertlikite! K2(Fe,Mg)2(Mg,Fe)4Fe2Al(SO4)12•18H2O I 41/acd 4/m 2/m 2/m
 

Other Zincovoltaite Information
Help on References: References: NAME( AntBidBlaNic5) PHYS. PROP.(Am.Min.,Vol.75,p244,1990) OPTIC PROP.(Am.Min.,Vol.75,p244,1990)
Help on See Also: See Also: Links to other databases for Zincovoltaite :
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

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

Zincovoltaite

K2Zn5Fe+++3Al(SO4)12•18(H2O)
Dana No: 29.09.01.02 Strunz No: 07.CC.25
Locality:

 

Notes: