Joosteite Mineral Data

Joosteite Mineral Data
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General Joosteite Information

Help on Chemical Formula: Chemical Formula: (Mn++,Mn+++,Fe+++)2(PO4)O
Help on Composition: Composition: Molecular Weight = 166.00 gm
   Manganese   29.79 %  Mn
   Iron         3.36 %  Fe
   Phosphorus  18.66 %  P
   Oxygen      48.19 %  O
              ______ 
              100.00 % 
Help on Empirical Formula: Empirical Formula: Mn2+0.6Mn3+0.3Fe3+0.1(PO4)O
Help on Environment: Environment: Formed by the alteration of oxidized sicklerite. Isostructural with stanekite-Mabc. Triplite/triploidite groups
Help on IMA Status: IMA Status: Approved IMA 2005 (Dana # Added)
Help on Locality: Locality: Helikon II pegmatite, Karibib, Namibia Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Mrs. Charlotte Jooste, Karibib, Namibia, for her support of pegmatite research in Central Namibia.
Help on Synonym: Synonym: IMA2005-013
 

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Joosteite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.8548:1:1.5297
Help on Cell Dimensions: Cell Dimensions: a = 11.888, b = 6.409, c = 9.804, Z = 8; beta = 106.17° V = 717.42 Den(Calc)= 3.07
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: I2/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.819(1), 3.077(0.8), 3.209(0.6),1.495(0.5), 1.787(0.5), 2.082(0.5), 2.184(0.4), 3.6(0.4),
Click Here for Large Joosteite Structure Window Crystal Structure:

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Keller P , Lissner F , Schleid T , Neues Jahrbuch fur Mineralogie, Abhandlungen , 184 (2007) p.225-230, The crystal structure of joosteite, (Mn2+,Mn3+,Fe3+)2[PO4]O, from the Helikon II mine,, Karibib (Namibia), and its relationship to stanekite, (Fe3+,Mn2+,Fe2+,Mg)2[PO4]O, Note: M1 and M2 Fe/Mn occupancies not determined, below are estimates, Locality: Helikon II mine, Karibib, Namibia

 

Calculated Properties of Joosteite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.96 gm/cc
note: Specific Gravity of Joosteite =3.07 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.000944545
Boson Index = 0.999055455
Help on Photoelectric: Photoelectric: PEJoosteite = 9.60 barns/electron
U=PEJoosteite x rElectron Density= 28.45 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Joosteite is Not Radioactive
 

Joosteite Classification
Help on Dana Class: Dana Class: 41.06.03.06 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.06)where (A)2 (XO4) Zq
  (41.06.03)Wolfeite Group
 
41.06.03.01 Wolfeite (Fe,Mn)2(PO4)(OH) P 21/a 2/m
 
41.06.03.02 Triploidite (Mn,Fe)2(PO4)(OH) P 21/a 2/m
 
41.06.03.03 Sarkinite Mn2(AsO4)(OH) P 21/a 2/m
 
41.06.03.04 Stanekite! Fe(Mn,Fe,Mg)(PO4)O P 21/a 2/m
 
41.06.03.06 Joosteite! (Mn,Mn,Fe)2(PO4)O I2/a 2/m
Help on Strunz Class: Strunz Class: 08.BB.15 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BB -With only medium-sized cations, (OH, etc.):RO4 £ 1:1
 
08.BB.15 Sarkinite Mn2(AsO4)(OH) P 21/a 2/m
 
08.BB.15 Stanekite! Fe(Mn,Fe,Mg)(PO4)O P 21/a 2/m
 
08.BB.15 Triploidite (Mn,Fe)2(PO4)(OH) P 21/a 2/m
 
08.BB.15 Wagnerite (Mg,Fe)2(PO4)F P 21/a 2/m
 
08.BB.15 Wolfeite (Fe,Mn)2(PO4)(OH) P 21/a 2/m
 
08.BB.15 Joosteite! (Mn,Mn,Fe)2(PO4)O I2/a 2/m
 

Other Joosteite Information
Help on References: References: NAME( AmMin, v93:1945) PHYS. PROP.(AmMin, v93:1945) OPTIC PROP.(AmMin, v93:1945)
Help on See Also: See Also: Links to other databases for Joosteite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Ask about Joosteite here :
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Print or Cut-and-Paste your Joosteite Specimen Label here :

Joosteite

(Mn++,Mn+++,Fe+++)2(PO4)O
Dana No: 41.06.03.06 Strunz No: 08.BB.15
Locality:

 

Notes: