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Joosteite

A valid IMA mineral species
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Formula:
Mn2+(Mn3+,Fe3+)(PO4)O
Colour:
grey with a brownish tinge, dark brown in thin section
Lustre:
Sub-Metallic
Hardness:
4
Specific Gravity:
4.13 (Calculated)
Crystal System:
Monoclinic
Member of:
Wagnerite Group
Name:
Named for Mrs. Charlotte Jooste (1920-2009), Karibib, Namibia, for her support of pegmatite research in Central Namibia.
Wagnerite Group.
The Mn3+ analogue of stanĕkite.


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Unique IdentifiersHide

Mindat ID:
27436
Long-form identifier:
mindat:1:1:27436:4

Similar NamesHide

Justite (of Hofmann-Degen)A variety of Åkermanite(Ca,Fe,Zn,Mg)3Si2O7

IMA Classification of JoosteiteHide

Classification of JoosteiteHide

Strunz-mindat (2026):
8.BB.15

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
Dana 8th ed.:
41.6.3.5

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
JooIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Pronunciation of JoosteiteHide

Pronunciation:
PlayRecorded byCountry
Debbie WoolfUnited Kingdom

Physical Properties of JoosteiteHide

Lustre:
Sub-Metallic
Transparency:
Opaque
Comment:
weak
Colour:
Grey with a brownish tinge, dark brown in thin section
Hardness:
4 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Density:
4.13 g/cm3 (Calculated)

Optical Data of JoosteiteHide

Anisotropism:
distinct
Bireflectance:
Low to moderate
Colour in reflected light:
gray with a brownish tint

Chemistry of JoosteiteHide

Mindat Formula:
Mn2+(Mn3+,Fe3+)(PO4)O
Element Weights:
Element% weight
Mn49.752 %
O36.223 %
P14.025 %

Calculated from ideal end-member formula.
Elements listed:
Fe, Mn, O, P - search for minerals with similar chemistry

Crystallography of JoosteiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 11.888(2) Å, b = 6.409(1) Å, c = 9.804(2) Å
β = 106.17(3)°
Ratio:
a:b:c = 1.855 : 1 : 1.53
Unit Cell V:
717.3 ų
Z:
8
Twinning:
not observed
Comment:
Space Group: I2/a

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014727JoosteiteKeller P, Lissner F, Schleid T (2007) 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 Neues Jahrbuch fur Mineralogie, Abhandlungen 184 225-2302007Helikon II mine, Karibib, Namibia0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.819 Å(100)
3.077 Å(80)
3.209 Å(60)
2.082 Å(50)
1.787 Å(50)
1.495 Å(50)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
21 : Chemically precipitated carbonate, phosphate, iron formations
High-? alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites
Stage 5: Initiation of plate tectonics<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47c : [Carbonates, phosphates, borates, nitrates]

Type Occurrence of JoosteiteHide

Type Locality:
ⓘ Helikon II pegmatite, Okongava Ost Farm 72, Karibib Constituency, Erongo Region, Namibia
General Appearance of Type Material:
irregular small aggregates up to 3mm in length
Place of Conservation of Type Material:
Universitat Stuttgart, Germany; Museum d'Histoire Naturelle de Toulouse, France, and the Department de Mineralogia y Petrologia, Universidad del Pais Vasco, Bilbao, Spain
Geological Setting of Type Material:
granitic rare element pegmatite
Associated Minerals at Type Locality:
Lithiophilite'Sicklerite'EosphoriteAmblygoniteVarulite
Dickinsonite-(KMnNa)Hureaulite'Apatite'
Reference:
Keller, Paul, Fontan, François, Roldan, Francisco Velasco, de Parseval, Philippe (2007) Joosteite, Mn2+(Mn3+, Fe3+)(PO4)O: a new phosphate mineral from the Helikon II Mine, Karibib, Namibia. Neues Jahrbuch für Mineralogie - Abhandlungen, 183 (2) 197-201 doi:10.1127/0077-7757/2007/0069

Synonyms of JoosteiteHide

Other Language Names for JoosteiteHide

Dutch:Joosteiet
German:Joosteit

Relationship of Joosteite to other SpeciesHide

Member of:
Wagnerite Group
Other Members of Wagnerite Group:
ArsenowagneriteMg2(AsO4)FMon. 2/m : P21/b
HydroxylwagneriteMg2(PO4)(OH)Mon. 2/m : P21/b
SarkiniteMn2+2(AsO4)(OH)Mon. 2/m : P21/b
Stanĕkite(Mn2+,Fe2+,Mg)Fe3+(PO4)OMon. 2/m : P21/b
WagneriteMg2(PO4)FMon. 2/m : P21/b
'Wagnerite-Arsenowagnerite Series'

Related Minerals - Strunz-mindat GroupingHide

8.BB.MoabiteNiFe3+(PO4)OOrth. mmm(2/m2/m2/m) : Pnma
8.BB.TilasiteCaMg(AsO4)FMon.
8.BB.PaulgrothiteCu9Fe3+O4(PO4)4Cl3Orth. mm2 : Cmc21
8.BB.KarlditmariteCu9O4(PO4)2(SO4)2Tric. 1 : P1
8.BB.MilkovoiteCu4O(PO4)(AsO4)Orth. mmm(2/m2/m2/m) : Pnma
8.BB.XArsenowagneriteMg2(AsO4)FMon. 2/m : P21/b
8.BB.05TavoriteLiFe3+(PO4)(OH)Tric. 1 : P1
8.BB.05AmblygoniteLiAl(PO4)FTric. 1 : P1
8.BB.05MontebrasiteLiAl(PO4)(OH)Tric. 1 : P1
8.BB.10ZwieseliteFe2+2(PO4)FMon. 2/m : P21/b
8.BB.10TripliteMn2+2(PO4)FMon. 2/m
8.BB.15'Unnamed (Sb-analogue of Auriacusite)'Fe3+Cu2+[(Sb,As)O4]O
8.BB.15HydroxylwagneriteMg2(PO4)(OH)Mon. 2/m : P21/b
8.BB.15WagneriteMg2(PO4)FMon. 2/m : P21/b
8.BB.15Stanĕkite(Mn2+,Fe2+,Mg)Fe3+(PO4)OMon. 2/m : P21/b
8.BB.15TriploiditeMn2+2(PO4)(OH)Mon. 2/m : P2/b
8.BB.15SarkiniteMn2+2(AsO4)(OH)Mon. 2/m : P21/b
8.BB.15WolfeiteFe2+2(PO4)(OH)Mon. 2/m : P21/b
8.BB.20HoltedahliteMg2(PO4)(OH)Trig. 3m : P31m
8.BB.20Satterlyite(Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6Trig. 3m(32/m) : P31m
8.BB.25AlthausiteMg4(PO4)2(OH,O)(F,◻)Orth. mmm(2/m2/m2/m) : Pnma
8.BB.30ZincoliveniteCuZn(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30AdamiteZn2(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30LibetheniteCu2(PO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30ZincolibetheniteCuZn(PO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30EveiteMn2+2(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30OliveniteCu2(AsO4)(OH)Mon. 2/m : P21/m
8.BB.30AuriacusiteFe3+Cu2+(AsO4)OOrth. mmm(2/m2/m2/m) : Pnnm
8.BB.35ParadamiteZn2(AsO4)(OH)Tric. 1 : P1
8.BB.35TarbuttiteZn2(PO4)(OH)Tric. 1 : P1
8.BB.40BarbosaliteFe2+Fe3+2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40ScorzaliteFe2+Al2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40LazuliteMgAl2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40MeizhouiteFe2+V3+2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40HentscheliteCuFe3+2(PO4)2(OH)2Mon. 2/m : P21/m
8.BB.40WilhelmkleiniteZnFe3+2(AsO4)2(OH)2Mon. 2/m : P21/m
8.BB.45DokuchaeviteCu8O2(VO4)3Cl3Tric. 1 : P1
8.BB.45TrolleiteAl4(PO4)3(OH)3Mon. 2/m : B2/b
8.BB.45YaroshevskiteCu9O2(VO4)4Cl2 Tric. 1 : P1
8.BB.50NamibiteCu(BiO)2(VO4)(OH)Tric. 1 : P1
8.BB.50Aleutite[Cu5O2](AsO4)(VO4) · (Cu,K,Pb,Rb,Cs,)ClMon. 2/m : B2/m
8.BB.52aEriclaxmaniteCu4O(AsO4)2Tric. 1 : P1
8.BB.52bKozyrevskiteCu4O(AsO4)2Orth. mmm(2/m2/m2/m) : Pnma
8.BB.55Phosphoellenbergerite(Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6Hex. 6mm : P63mc
8.BB.55PopoviteCu5O2(AsO4)2Tric. 1 : P1
8.BB.60UrusoviteCuAl(AsO4)OMon. 2/m : P21/b
8.BB.65TheoparacelsiteCu3(As2O7)(OH)2Orth. mmm(2/m2/m2/m) : Pmma
8.BB.70TuraniteCu5(VO4)2(OH)4Tric. 1 : P1
8.BB.75StoiberiteCu5(VO4)2O2Mon. 2/m
8.BB.80FingeriteCu11(VO4)6O2Tric. 1 : P1
8.BB.85AverieviteCu6(VO4)2O2Cl2Trig. 3 : P3
8.BB.90RichelliteCaFe3+2(PO4)2(OH,F)2Amor.
8.BB.90LipscombiteFe2+Fe3+2(PO4)2(OH)2Tet. 422 : P41212
8.BB.90ZinclipscombiteZnFe3+2(PO4)2(OH)2Tet. 422 : P43212

Fluorescence of JoosteiteHide

In UV light:
no fluorescence

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for JoosteiteHide

References for JoosteiteHide

Localities for JoosteiteHide

Showing 2 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Namibia (TL)
 
  • Erongo Region
    • Karibib Constituency
      • Okongava Ost Farm 72
Keller et al. (2007)
Poland
 
  • Lower Silesian Voivodeship
    • Dzierżoniów County
      • Piława Górna
        • DSS Piława Górna Quarry
Pieczka et al. (2015)
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