Ammoniojarosite Mineral Data

Ammoniojarosite Mineral Data
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General Ammoniojarosite Information

Help on Chemical Formula: Chemical Formula: (NH4)Fe+++3(SO4)2(OH)6
Help on Composition: Composition: Molecular Weight = 479.75 gm
   Iron      34.92 %  Fe   49.93 % Fe2O3
   Hydrogen   0.84 %  H      -   % Calc as (NH4)2O
   Hydrogen   1.26 %  H    11.27 % H2O
   Sulfur    13.37 %  S    33.38 % SO3
   Nitrogen   2.92 %  N     5.43 % (NH4)2O
   Oxygen    46.69 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (NH4)Fe3+3(SO4)2(OH)6
Help on Environment: Environment: Formed in black lignitic shales containing pyrite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1927
Help on Locality: Locality: Undefined locality on the "west side of the Kaibab fault, Kane Co., Utah". Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the ammonium analog of jarosite.
Help on Name Pronunciation: Name Pronunciation: Ammoniojarosite + Pronunciation Say AMMONIOJAROSITE
 

Ammoniojarosite Image

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Ammoniojarosite

Comments: Tan colored fine-grained massive ammoniojarosite, intimately associated with quartz.
Location: Wamsutter, Sweetwater County, Wyoming, USA. Scale: See Image.
© Rruff Database

Ammoniojarosite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:2.36111
Help on Cell Dimensions: Cell Dimensions: a = 7.2, c = 17, Z = 3; V = 763.21 Den(Calc)= 3.13
Help on Crystal System: Crystal System: Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: R 3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.1(1), 5.1(0.6), 1.99(0.4),
Help on Forms: Forms:

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Forms: ( 1 1 1) ( 1 1 2) ( 0 0 1)

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Basciano L C , Peterson R C , Mineralogical Magazine , 71 (2007) p.427-441, The crystal structure of ammoniojarosite, (NH4)Fe3(SO4)2(OH)6 and the crystal chemistry, of the ammoniojarosite-hydronium jarosite solid-solution series, Locality: Synthetic

 

Physical Properties of Ammoniojarosite

Help on Color: Color: Yellow.
Help on Density: Density: 3.02
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 3.5-4.5 - Between Copper Penny and Fluorite-Apatite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: light yellow
 

Optical Properties of Ammoniojarosite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.008 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.028 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2476,KPDmeas= 0.2566,KC= 0.2547
Ncalc = 1.77 - 1.8
Help on Optical Data: Optical Data: Uniaxial (-), e=1.75, w=1.8, bire=0.0500.
 

Calculated Properties of Ammoniojarosite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.01 gm/cc
note: Specific Gravity of Ammoniojarosite =3.02 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEAmmoniojarosite = 11.07 barns/electron
U=PEAmmoniojarosite x rElectron Density= 33.31 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ammoniojarosite is Not Radioactive
 

Ammoniojarosite Classification
Help on Dana Class: Dana Class: 30.02.05.04 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen
  (30.02)where (A B)2 XO4 Zq
  (30.02.05)Alunite Group (Jarosite Subgroup)
 
30.02.05.01 Jarosite KFe3(SO4)2(OH)6 R 3 3
 
30.02.05.02 Natrojarosite NaFe3(SO4)2(OH)6 R 3m 3m
 
30.02.05.03 Hydroniumjarosite (H3O)Fe3(SO4)2(OH)6 R 3m 3m
 
30.02.05.04 Ammoniojarosite (NH4)Fe3(SO4)2(OH)6 R 3m 3m
 
30.02.05.05 Argentojarosite AgFe3(SO4)2(OH)6 R 3m 3m
 
30.02.05.06 Plumbojarosite PbFe6(SO4)4(OH)12 R 3m 3 2/m
 
30.02.05.07 Beaverite PbCu(Fe,Al)2(SO4)2(OH)6 R 3m 3m
 
30.02.05.08 Dorallcharite (Tl,K)Fe3(SO4)2(OH)6 R 3m 3 2/m
Help on Strunz Class: Strunz Class: 07.BC.10 07 - SULFATES (SELENATES, TELLURATES)
  07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O
  07.BC -With medium-sized and large cations
 
07.BC.10 Alunite KAl3(SO4)2(OH)6 R 3m, R 3m Trig
 
07.BC.10 Ammonioalunite (NH4)Al3(SO4)2(OH)6 R 3m 3 2/m
 
07.BC.10 Ammoniojarosite (NH4)Fe3(SO4)2(OH)6 R 3m 3m
 
07.BC.10 Beaverite PbCu(Fe,Al)2(SO4)2(OH)6 R 3m 3m
 
07.BC.10 Argentojarosite AgFe3(SO4)2(OH)6 R 3m 3m
 
07.BC.10 Huangite Ca0.5Al3(SO4)2(OH)6 R 3m 3 2/m
 
07.BC.10 Dorallcharite (Tl,K)Fe3(SO4)2(OH)6 R 3m 3 2/m
 
07.BC.10 Jarosite KFe3(SO4)2(OH)6 R 3 3
 
07.BC.10 Hydroniumjarosite (H3O)Fe3(SO4)2(OH)6 R 3m 3m
 
07.BC.10 Minamiite (Na,Ca,K)Al3(SO4)2(OH)6 R 3m 3 2/m
 
07.BC.10 Natrojarosite NaFe3(SO4)2(OH)6 R 3m 3m
 
07.BC.10 Natroalunite NaAl3(SO4)2(OH)6 R 3m 3 2/m
 
07.BC.10 Osarizawaite PbCuAl2(SO4)2(OH)6 R 3m 3m
 
07.BC.10 Plumbojarosite PbFe6(SO4)4(OH)12 R 3m 3 2/m
 
07.BC.10 Schlossmacherite (H3O,Ca)Al3(AsO4,SO4)2(OH)6 R 3m 3 2/m
 
07.BC.10 Walthierite Ba0.5Al3(SO4)2(OH)6 R 3m 3 2/m
 

Other Ammoniojarosite Information
Help on References: References: NAME( AntBidBlaNic5) 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 Ammoniojarosite :
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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Ammoniojarosite

(NH4)Fe+++3(SO4)2(OH)6
Dana No: 30.02.05.04 Strunz No: 07.BC.10
Locality:

 

Notes: