Sasaite Mineral Data

Sasaite Mineral Data
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General Sasaite Information

Help on Chemical Formula: Chemical Formula: (Al,Fe+++)14(PO4)11(SO4)(OH)7•84(H2O)
Help on Composition: Composition: Molecular Weight = 3,208.56 gm
   Aluminum    10.09 %  Al   19.07 % Al2O3
   Iron         3.48 %  Fe    4.98 % Fe2O3
   Phosphorus  10.62 %  P    24.33 % P2O5
   Hydrogen     5.50 %  H    49.13 % H2O
   Sulfur       1.00 %  S     2.50 % SO3
   Oxygen      69.31 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al12Fe3+2(PO4)11(SO4)(OH)7•84(H2O)
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: West Dreifontein cave, near Carlstonville, Transvaal, South Africa. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the South African Speleological Society (SAS).
Help on Name Pronunciation: Name Pronunciation: Sasaite Say SASAITE
 

Sasaite Image

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Sasaite

Comments: Whitish sasaite coatings on altering serpentinite rock.
Location: Breitenau, Steiermark, Austria. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Sasaite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.7191:1:1.5344
Help on Cell Dimensions: Cell Dimensions: a = 10.81, b = 15.031, c = 23.064, Z = 1; V = 3,747.56 Den(Calc)= 1.42
Help on Crystal System: Crystal System: OrthorhombicSpace Group: P 222 or Pmm2 or P mmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 11.52(1), 2.9(0.42), 6.99(0.23),
 

Physical Properties of Sasaite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: White.
Help on Density: Density: 1.75
Help on Habit: Habit: Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite).
Help on Habit: Habit: Nodular - Tuberose forms having irregular protuberances over the surface.
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Streak: Streak: white
 

Optical Properties of Sasaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.225 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3322,KPDmeas= 0.2695,KC= 0.2711
Ncalc = 1.39 - 1.47
Help on Optical Data: Optical Data: Biaxial (-), a=1.465, b=1.473, g=1.477, bire=0.0120, 2V(Calc)=70, 2V(Meas)=15.
 

Calculated Properties of Sasaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.83 gm/cc
note: Specific Gravity of Sasaite =1.75 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.001153898
Boson Index = 0.998846102
Help on Photoelectric: Photoelectric: PESasaite = 1.97 barns/electron
U=PESasaite x rElectron Density= 3.60 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sasaite is Not Radioactive
 

Sasaite Classification
Help on Dana Class: Dana Class: 43.05.04.01 (43)Compound Phosphates, etc.
  (43.05)(Hydrated Compound Anions With Hydroxyl or Halogen)
  (43.05.04)Dana Group
 
43.05.04.01 Sasaite (Al,Fe)14(PO4)11(SO4)(OH)7•84(H2O) P 222 or Pmm2 or P mmm Ortho
Help on Strunz Class: Strunz Class: 08.DB.55 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DB -With only medium-sized cations, (OH, etc.):RO4 < 1:1
 
08.DB.55 Sasaite (Al,Fe)14(PO4)11(SO4)(OH)7•84(H2O) P 222 or Pmm2 or P mmm Ortho
 

Other Sasaite Information
Help on References: References: NAME( Dana8) 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 Sasaite :
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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Print or Cut-and-Paste your Sasaite Specimen Label here :

Sasaite

(Al,Fe+++)14(PO4)11(SO4)(OH)7•84(H2O)
Dana No: 43.05.04.01 Strunz No: 08.DB.55
Locality:

 

Notes: