Mineralienatlas - Fossilienatlas
Joosteite (Joosteit) |
Collectors Summary
Color | schwarz |
Streak color | bräunlichschwarz |
Lustre | schwacher Halbmetallglanz |
Cleavages | keine |
Crystal System | monoklin, I2/a |
Morphology | Das Mineral tritt in Form von schmalen, unregelmäßig konturierten, nie verzwillingten Aggregaten bis 3mm Länge auf. |
Chemism
Chemical formula |
(Mn2+,Mn3+,Fe3+)2(PO4)O |
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Additional chem. information |
Triplit/Triploidit Gruppen |
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Chemical composition |
Eisen, Mangan, Phosphor, Sauerstoff |
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Analysis wt% |
P2O5 : 29.97, Fe2O3 : 12.86, Mn2O3 : 22.80, MnO : 31.14 (Ref: Neues Jahrbuch für Mineralogie, (Monatshefte) A2007) |
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Strunz 9th edition incl. updates |
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8: Phosphate, Arsenate, Vanadate |
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Lapis Classification |
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VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!) |
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Classification by Hölzel |
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8: PHOSPHATES ARSENATES VANADATES |
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IMA status |
anerkannt 2005 |
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Mineral status |
anerkanntes Mineral |
Optical Properties
schwarz |
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bräunlichschwarz |
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opak-dunkelbraun-durchscheinend in ultradünnen Schliffen |
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schwacher Halbmetallglanz |
Optical Data Luminescence
keine Fluoreszenz bekannt |
Crystallography
Crystal Structure 3D
Open larger view |
Physical Properties
190 (ungefähre Angabe abgeleitet aus der Mohshärte) |
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4.13 berechnet |
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4.093 ( ρ calc. Mineralienatlas ) |
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keine |
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spröde |
(Co-)Type locality
(Co-)Type locality |
Namibia/Erongo, Region/Karibib, Kreis/Usakos/Okangava Ost Farm Nr. 72/Helikon II Pegmatit |
Type material |
Archiv der Universität Stuttgart, "Mineralogische Sammlung Prof. Keller" |
Collection number of type material |
TM-05.13-9911.07 / 0/824-s27/2 |
Paragenesis of type material |
Amblygonit, Lithiophilit, Sicklerit, Eosphorit, Varulit, Dickinsonit, Hureaulith, manganhaltiger Apatit |
Preface
Lithiophilit, Sicklerit, Eosphorit, Amblygonit, Varulith, Dickinsonit, Hureaulith, Apatit |
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Name from |
Charlotte "Lotti" Jooste (in Anerkennung ihrer uneigennützigen Unterstützung der Pegmatitforscher in Zentralnamibia) |
References
Other languages
German |
Joosteit |
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English |
Joosteite |
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Russian |
Джустеит |
CNMNC (IMA)-Number
IMA 2005-013 |
CNMNC symbol
Symbol |
Joo |
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Locations with GPS information