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Brabantite

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Formula:
CaTh(PO4)2
Hardness:
Crystal System:
Monoclinic
A discredited member of the Monazite Group.
The CaTh(PO4)2-dominant members are now called Cheralite.

Originally reported from Van der Made pegmatite (Brabant; Erongo Schlucht), Brabant 86 Farm, Etiro, Karibib District, Erongo Region, Namibia.


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Classification of BrabantiteHide

Discredited
7/A.15-50

7 : Phosphates, Arsenates, Vanadates
A : Waterfree phosphates [PO4]3- without unfamiliar anions, cations of small size: Li, Be, Al
15 : Monazite group
38.4.3.4

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
19.10.6

19 : Phosphates
10 : Phosphates of Pb, Th, V and Bi

Physical Properties of BrabantiteHide

Hardness:
5½ on Mohs scale

Optical Data of BrabantiteHide

Type:
Biaxial
Dispersion:
r < v strong

Chemical Properties of BrabantiteHide

Formula:
CaTh(PO4)2

Crystallography of BrabantiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 6.72 Å, b = 6.93 Å, c = 6.44 Å
β = 103.88°
Ratio:
a:b:c = 0.97 : 1 : 0.929
Unit Cell V:
291.15 ų (Calculated from Unit Cell)

Synonyms of BrabantiteHide

Other Language Names for BrabantiteHide

Related Minerals - Nickel-Strunz Grouping (8th Edition)Hide

7/A.15-10Monazite-(La)La(PO4)
7/A.15-20Monazite-(Ce)Ce(PO4)Mon. 2/m : P21/b
7/A.15-30Monazite-(Nd)Nd(PO4)
7/A.15-32Monazite-(Sm)Sm(PO4)Mon. 2/m : P21/m
7/A.15-40CheraliteCaTh(PO4)2Mon. 2/m
7/A.15-60Gasparite-(Ce)Ce(AsO4)

Related Minerals - Dana Grouping (8th Ed.)Hide

38.4.3.1Monazite-(Ce)Ce(PO4)Mon. 2/m : P21/b
38.4.3.2Monazite-(La)La(PO4)
38.4.3.5Monazite-(Nd)Nd(PO4)
38.4.3.5CheraliteCaTh(PO4)2Mon. 2/m
38.4.3.6Gasparite-(Ce)Ce(AsO4)

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.10.1OxypyromorphitePb10(PO4)6O
19.10.2PlumbogummitePbAl3(PO4)(PO3OH)(OH)6Trig. 3m (3 2/m) : R3m
19.10.3KamitugaiteAlPb(UO2)5(PO4,AsO4)2(OH)9 · 5H2OTric.
19.10.5DrugmanitePb2(Fe3+,Al)(PO4)(PO3OH)(OH)2Mon. 2/m : P21/b
19.10.8Grayite(Th,Pb,Ca)(PO4) · H2OHex. 6 2 2 : P62 2 2
19.10.9Brockite(Ca,Th,Ce)PO4 · H2OHex. 6 2 2 : P62 2 2
19.10.10SincositeCa(VO)2(PO4)2 · 5H2OTet. 4/mmm (4/m 2/m 2/m) : P42/nnm
19.10.11XimengiteBi(PO4)Trig.
19.10.12Paulkellerite(BiO)2Fe3+(PO4)(OH)2Mon. 2/m : B2/b

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.

References for BrabantiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Amer. Mineral. 66:878-879
Linthout, K. (2007): Tripartite division of the system 2REEPO4 – CaTh(PO4)2– 2ThSiO4, discreditation of brabantite, and recognition of cheralite as the name for members dominated by CaTh(PO4)2. Can. Mineral. 45, 503-508.

Internet Links for BrabantiteHide

Localities for BrabantiteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Australia
 
  • Western Australia
    • Port Hedland Shire
      • Abydos Station
        • Wodgina
Calderwood, M.A., Grguric, B.A., Jacobson, M.I., (2007) Guidebook to the Pegmatites of Western Australia.
China
 
  • Xinjiang Autonomous Region
    • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
      • Aletai Prefecture (Altay Prefecture)
        • Fuyun Co. (Koktokay Co.)
          • Koktokay pegmatite field (Keketuohai pegmatite field)
            • Altay Mine
Wang Xianjue (1978): Kexue Tongbao 23, 743–745 (in Chinese).
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
          • Horní Blatná District (Platten)
            • Potůčky (Breitenbach)
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
      • Lázně Kynžvart (Bad Königswart)
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
    • South Bohemia Region
      • Jindřichův Hradec okres
        • Majdalena
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
    • Ústí Region
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
  • Moravia (Mähren; Maehren)
    • Olomouc Region
      • Šumperk (Mährisch Schönberg)
        • Maršíkov (Marchendorf)
Novák, M.: Maršíkov - Schinderhübel. In Exkurzní průvodce po mineralogických lokalitách na Sobotínsku. Univerzita Palackého v Olomouci, 2002, Olomouc, s. 34-37.
    • Vysočina Region
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
      • Žďár nad Sázavou
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
www.cseg.ca/conferences/2000/556.PDF.; Cerny, P., Novak, M., Chapman, R., & Masau, M. (2000). Subsolidus behavior of niobian rutile from Vezna, Czech Republic: A model for exsolutions in phases with Fe2+>> Fe3+. Journal of GEOsciences, 45(1-2), 21-35.
Finland
 
  • Lapland Region
    • Savukoski
      • Tulppio
        • Sokli carbonatite complex
Sarapää, O.; Lauri, L. S.; Ahtola, T.; Al-Ani, T.; Grönholm, S.; Kärkkäinen, N.; Lintinen, P.; Torppa, A.; Turunen, P. 2015. Discovery potential of hi-tech metals and critical minerals in Finland. GSF Report of Investigation, vol 219
Germany & Czech Republic
 
  • Erzgebirge; Krusné Hory Mts (Ore Mts)
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
Namibia
 
  • Erongo Region
    • Karibib District
      • Brabant Farm 168
Neues Jahrb. Mineral. Monatsh. (1980) 6, 247-257.
Slovakia
 
  • Košice Region
    • Rožňava Co.
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
USA
 
  • New Mexico
    • Sierra Co.
      • Paramount Canyon
Minerals of New Mexico 3rd ed.
Northrup, Minerals of New Mexico, 3rd Rev. Ed., 1996
Mineral and/or Locality  
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