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Xitieshanite Mineral Data

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General Xitieshanite Information

Help on Chemical  Formula: Chemical Formula: Fe+++(SO4)(Cl)•7(H2O)
Help on Composition: Composition: Molecular Weight = 313.47 gm
   Iron      17.82 %  Fe   25.47 % Fe2O3
   Hydrogen   4.50 %  H    40.23 % H2O
   Sulfur    10.23 %  S    25.54 % SO3
   Chlorine  11.31 %  Cl   11.31 % Cl
               -   %   Cl   -2.55 % -O=Cl2   
   Oxygen    56.14 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+(SO4)Cl•7(H2O)
Help on Environment: Environment: Oxidation zone of a lead-zinc mine.
Help on IMA Status: IMA Status: Approved IMA 1983
Help on Locality: Locality: Xitieshan lead-zinc mine, Qaidam basin, Qinghai, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Xitieshanite + Pronunciation Say XITIESHANITE
Help on Synonym: Synonym: ICSD 65615
  PDF 35-719

Xitieshanite Image

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Comments: Photomicrographs of xitieshanite crystals from acid mine drainage seeps. AmMin, v90, p 1520.
Location: Green Valley, Vigo County, Indiana, USA. Scale: See Image.
© American Mineralogist

Xitieshanite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.0414:1:1.545
Help on Cell Dimensions: Cell Dimensions: a = 14.102, b = 6.908, c = 10.673, Z = 4; beta = 111.266° V = 968.93 Den(Calc)= 2.15
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.81(1), 4.96(1), 3.9(0.9),

Physical Properties of Xitieshanite

Help on Cleavage: Cleavage: {???} Indistinct
Help on Color: Color: Green, Yellow green.
Help on Density: Density: 1.99
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: yellow

Optical Properties of Xitieshanite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.025 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.098 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2688,KPDmeas= 0.2905,KC= 0.298
Ncalc = 1.59 - 1.64
Help on Optical Data: Optical Data: Biaxial (-), a=1.536, b=1.57, g=1.628, bire=0.0920, 2V(Calc)=78, 2V(Meas)=77. Dispersion r > v.
Help on Pleochroism (x): Pleochroism (x): colorless or pale yellow.
Help on Pleochroism (y): Pleochroism (y): pale yellow.
Help on Pleochroism (z): Pleochroism (z): light greenish yellow.

Calculated Properties of Xitieshanite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.04 gm/cc
note: Specific Gravity of Xitieshanite =1.99 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0048203772
Boson Index = 0.9951796228
Help on Photoelectric: Photoelectric: PEXitieshanite = 6.50 barns/electron
U=PEXitieshanite x rElectron Density= 13.29 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Xitieshanite is Not Radioactive

Xitieshanite Classification

Help on  Dana Class: Dana Class: (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.09)where (A+ B++) (XO4) Zq�x(H2O)
  (31.09.06)Botryogen Group Botryogen MgFe(SO4)2(OH)•7(H2O) P 21/n 2/m Zincobotryogen (Zn,Mg,Mn)Fe(SO4)2(OH)•7(H2O) P 21/n 2/m Xitieshanite Fe(SO4)(Cl)•7(H2O) P 21/a 2/m
Help on  Strunz Class: Strunz Class: 07.DC.20 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DC -With only medium-sized cations; chains of corner-sharing octahedra
07.DC.20 Xitieshanite Fe(SO4)(Cl)•7(H2O) P 21/a 2/m

Other Xitieshanite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Xitieshanite :
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

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Dana No: Strunz No: 07.DC.20





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