Sarmientite  Mineral Data

Sarmientite Mineral Data

Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About

Advertisment

[Newest Minerals] [Mineral Auctions] [Mineral Gallery]
The Mineral Gallery's Exceptional Specimens and Mineral Hall of Fame
Visa, PayPal, and Mastercard are Welcomed


General Sarmientite Information

Help on Chemical  Formula: Chemical Formula: Fe+++2(AsO4)(SO4)(OH)•5(H2O)
Help on Composition: Composition: Molecular Weight = 453.76 gm
   Iron      24.62 %  Fe   35.19 % Fe2O3
   Arsenic   16.51 %  As   25.33 % As2O5
   Hydrogen   2.44 %  H    21.84 % H2O
   Sulfur     7.07 %  S    17.64 % SO3
   Oxygen    49.36 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+2(AsO4)(SO4)(OH)•5(H2O)
Help on Environment: Environment: Rare mineral in oxidized pyritic veins in diabase.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1941
Help on Locality: Locality: Santa Elena mine, Quebrada de La Alcaparrosa, between San Juan and Calingasta, San Juan Province, Argentina. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Domingo Faustino Sarmiento (1811-1888), former President of Argentina.
 

Sarmientite Image

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

Sarmientite

Comments: Pale olive-green chalky massive sarmientite.
Location: Kotzebue, Alaska, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Sarmientite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.353:1:0.5229
Help on Cell Dimensions: Cell Dimensions: a = 6.55, b = 18.55, c = 9.7, Z = 4; beta = 97.65° V = 1,168.08 Den(Calc)= 2.58
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.29(1), 4.64(0.9), 4.26(0.8),
 

Physical Properties of Sarmientite

Help on Color: Color: Yellow orange, Light yellow, Light orange.
Help on Density: Density: 2.58
Help on Streak: Streak: white
 

Optical Properties of Sarmientite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.016 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2534,KPDmeas= 0.2534,KC= 0.2574
Ncalc = 1.66
Help on Optical Data: Optical Data: Biaxial (+), a=1.628, b=1.635, g=1.698, bire=0.0700, 2V(Calc)=38, 2V(Meas)=38.
 

Calculated Properties of Sarmientite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.55 gm/cc
note: Specific Gravity of Sarmientite =2.58 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.005989033
Boson Index = 0.994010967
Help on Photoelectric: Photoelectric: PESarmientite = 18.60 barns/electron
U=PESarmientite x rElectron Density= 47.38 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sarmientite is Not Radioactive
 

Sarmientite Classification

Help on  Dana Class: Dana Class: 43.05.01.01 (43)Compound Phosphates, etc.
  (43.05)(Hydrated Compound Anions With Hydroxyl or Halogen)
  (43.05.01)Sarmientite Group
 
43.05.01.01 Sarmientite Fe2(AsO4)(SO4)(OH)•5(H2O) P 21/c 2/m
 
43.05.01.02 Bukovskyite Fe2(AsO4)(SO4)(OH)•7(H2O) P1 or P1 Tri
 
43.05.01.03 Sanjuanite Al2(PO4)(SO4)(OH)•9(H2O) P1 or P1 Tri
Help on  Strunz Class: Strunz Class: 08.DB.35 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DB -With only medium-sized cations, (OH, etc.):RO4 < 1:1
 
08.DB.35 Sarmientite Fe2(AsO4)(SO4)(OH)•5(H2O) P 21/c 2/m
 

Other Sarmientite Information

Help on References: References: NAME( AntBidBlaNic4) 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 Sarmientite :
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

Search for Sarmientite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Sarmientite :

A Bijoux Google Search for Sarmientite
Adam's Minerals Google Search for Sarmientite
Cape Minerals Google Search for Sarmientite
Dakota Matrix Minerals Google Search for Sarmientite
Excalibur Mineral Corp. Google Search for Sarmientite
Exceptional Minerals Google Search for Sarmientite
John Betts Fine Minerals Search for Sarmientite
McDougall Minerals Google Search for Sarmientite
Mineral News Website Link
Rock and Mineral Shows Google Search for Sarmientite
Weinrich Minerals, Inc. Google Search for Sarmientite

Ask about Sarmientite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

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

Sarmientite

Fe+++2(AsO4)(SO4)(OH)•5(H2O)
Dana No: 43.05.01.01 Strunz No: 08.DB.35
Locality:

 

Notes: