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Jarosewichite Mineral Data

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General Jarosewichite Information

Help on Chemical  Formula: Chemical Formula: Mn++3Mn+++(AsO4)(OH)6
Help on Composition: Composition: Molecular Weight = 460.72 gm
   Manganese  47.70 %  Mn   46.19 % MnO / 17.13 % Mn2O3
   Arsenic    16.26 %  As   24.94 % As2O5
   Hydrogen    1.31 %  H    11.73 % H2O
   Oxygen     34.73 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+3Mn3+(AsO4)(OH)6
Help on Environment: Environment: Metamorphosed Zn-Mn deposit.
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Franklin, Sussex County, New Jersey, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Eugene Jaroswich (1926-), chief chemist, Department of Mineral Sciences, National Museum of Natural History, Smithsonian Institution.
Help on Name Pronunciation: Name Pronunciation: Jarosewichite + Pronunciation Say JAROSEWICHITE

Jarosewichite Image

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  Jarosewichite   Flinkite

Comments: Radial divergent spray of thick prismatic jarosewichite crystals with bladed flinkite crystals. (AmMin, v67:1043).
Location: Franklin mine, Franklin, SussexC ounty, New Jersey, USA. Scale: Scale Bar 100 µm.
© American Mineralogist

Jarosewichite Crystallography

Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.669(1), 3.91(0.6), 1.788(0.5),

Physical Properties of Jarosewichite

Help on Color: Color: Dark red.

Optical Properties of Jarosewichite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.027 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.038 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2144,KPDmeas= 0.2168,KC= 0.2228
Ncalc = 1.82

Calculated Properties of Jarosewichite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.48 gm/cc
note: Specific Gravity of Jarosewichite =3.66 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.00016866
Boson Index = 0.99983134
Help on Photoelectric: Photoelectric: PEJarosewichite = 23.50 barns/electron
U=PEJarosewichite x rElectron Density= 81.77 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Jarosewichite is Not Radioactive

Jarosewichite Classification

Help on  Dana Class: Dana Class: (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.01)where (A++)m (XO4)p Zq, with m:p>4:1
  (41.01.01)Phoenicite Group Chlorophoenicite (Mn,Mg)3Zn2(AsO4)(OH,O)6 C 2/m 2/m Magnesiochlorophoenicite (Mg,Mn)3Zn2(AsO4)(OH,O)6 C 2/m 2/m Jarosewichite Mn3Mn(AsO4)(OH)6 C 222,C mm2,C 2m2(/n) Ortho
Help on  Strunz Class: Strunz Class: 08.BE.70 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BE -With only medium-sized cations, (OH, etc.):RO4 > 2:1
08.BE.70 Jarosewichite Mn3Mn(AsO4)(OH)6 C 222,C mm2,C 2m2(/n) Ortho

Other Jarosewichite Information

Help on See Also: See Also: Links to other databases for Jarosewichite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Dana No: Strunz No: 08.BE.70