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Joosteite Mineral Data
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General Joosteite Information
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 Chemical Formula: |
(Mn++,Mn+++,Fe+++)2(PO4)O |
| Composition: |
Molecular Weight = 166.00 gm |
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Manganese 29.79 % Mn |
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Iron 3.36 % Fe |
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Phosphorus 18.66 % P |
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Oxygen 48.19 % O |
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______ |
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100.00 % |
| Empirical Formula: |
Mn2+0.6Mn3+0.3Fe3+0.1(PO4)O |
| Environment: |
Formed by the alteration of oxidized sicklerite. Isostructural with stanekite-Mabc. Triplite/triploidite groups |
| IMA Status: |
Approved IMA 2005 (Dana # Added) |
| Locality: |
Helikon II pegmatite, Karibib, Namibia Link to MinDat.org Location Data. |
| Name Origin: |
Named for Mrs. Charlotte Jooste, Karibib, Namibia, for her support of pegmatite research in Central Namibia. |
| Synonym: |
IMA2005-013 |
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Joosteite Crystallography
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| Axial Ratios: |
a:b:c =1.8548:1:1.5297 |
| Cell Dimensions: |
a = 11.888, b = 6.409, c = 9.804, Z = 8; beta = 106.17° V = 717.42 Den(Calc)= 3.07 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: I2/a |
| 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), |
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Calculated Properties of Joosteite
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| Electron Density: |
Bulk Density (Electron Density)=2.96 gm/cc
note: Specific Gravity of Joosteite =3.07 gm/cc.
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| Fermion Index: |
Fermion Index = 0.000944545
Boson Index = 0.999055455 |
| Photoelectric: |
PEJoosteite = 9.60 barns/electron
U=PEJoosteite x rElectron Density= 28.45 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Joosteite is Not Radioactive |
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Joosteite Classification
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| Dana Class: |
41.06.03.06 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen |
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(41.06)where (A)2 (XO4) Zq |
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(41.06.03)Wolfeite Group |
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41.06.03.01 Wolfeite (Fe,Mn)2(PO4)(OH) P 21/a 2/m |
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41.06.03.02 Triploidite (Mn,Fe)2(PO4)(OH) P 21/a 2/m |
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41.06.03.03 Sarkinite Mn2(AsO4)(OH) P 21/a 2/m |
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41.06.03.04 Stanekite! Fe(Mn,Fe,Mg)(PO4)O P 21/a 2/m |
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41.06.03.06 Joosteite! (Mn,Mn,Fe)2(PO4)O I2/a 2/m |
| Strunz Class: |
08.BB.15 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.B - Phosphates, etc. with Additional Anions, without H2O |
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08.BB -With only medium-sized cations, (OH, etc.):RO4 � 1:1 |
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08.BB.15 Sarkinite Mn2(AsO4)(OH) P 21/a 2/m |
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08.BB.15 Stanekite! Fe(Mn,Fe,Mg)(PO4)O P 21/a 2/m |
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08.BB.15 Triploidite (Mn,Fe)2(PO4)(OH) P 21/a 2/m |
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08.BB.15 Wagnerite (Mg,Fe)2(PO4)F P 21/a 2/m |
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08.BB.15 Wolfeite (Fe,Mn)2(PO4)(OH) P 21/a 2/m |
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08.BB.15 Joosteite! (Mn,Mn,Fe)2(PO4)O I2/a 2/m |
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Other Joosteite Information
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| References: |
NAME( AmMin, v93:1945) PHYS. PROP.(AmMin, v93:1945) OPTIC PROP.(AmMin, v93:1945) |
| 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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Print or Cut-and-Paste your Joosteite Specimen Label here :
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Joosteite
(Mn++,Mn+++,Fe+++)2(PO4)O
Dana No: 41.06.03.06 Strunz No: 08.BB.15
Locality:
Notes:
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