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Keilhauite

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Big Photo

Khan Mine, Arandis, Swakopmund District, Erongo Region, Namibia
© 2008 Peter Cristofono




Formula:
(CaTi,Al
 
2
,Fe
3+
2
,Y
3+
2
)SiO
 
5
Name:
The name is for the Norwegian geologist Prof. Baltazar Mathias Keilhau (1797-1858). First found by Weibye in 1841 and sent by him to A. Erdmann who analyzed and first described it. The same mineral was independently described as yttrotitanite by Scheerer (1844).
A variety of Titanite

A rare-earth bearing Titanite with up to 10% Y2O3.
Originally described from Buø, Tromøysund, Arendal, Aust-Agder, Norway by Erdmann (1844).

Classification of Keilhauite

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Chemical Properties of Keilhauite

Formula:
(CaTi,Al
 
2
,Fe
3+
2
,Y
3+
2
)SiO
 
5
Essential elements:Ca, O, Si, Ti
All elements listed in formula:Al, Ca, Fe, O, Si, Ti, Y

Other Names for Keilhauite

Other Languages:
German:Keilhauit
Spanish:Keilhauita

Other Information

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

References for Keilhauite

Reference List:

- +
- Erdmann, A. (1844): Undersökning af et nytt, Ytterjords- och Titansyrehaltigt Mineral från Buö, i trakten af Arendal i Norrige. Kongliga Svenska Vetenskaps-Akademiens Handlingar, 355-361
- Scheerer, T. (1844): Yttro-Titanit, eine neue mineralspecies. Annalen der Physik und Chemie (herausgegeben zu Berlin von J.C. Poggendorff), 63: 459-462
- Weibye, P. C. (1848): Beiträge zur topograpischen Mineralologie Norwegens. Archiv für Mineralogie, Geognosie, Bergbau und Hüttenkunde. 22: 465-544

Internet Links for Keilhauite

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    • Localities for Keilhauite

    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Japan
     
    • Honshu Island
      • Tohoku Region
        • Iwate Prefecture
          • Tono City
            • Miyamori
    		Dr. Yohachiro Okamoto collection (curated at Geological Survey museum, Japan)
    Namibia
     
    • Erongo Region
      • Swakopmund District
        • Arandis
    		Harvard Museum no. 89494
    Norway
     
    • Aust-Agder
      • Arendal
        • Tromøysund
    		 Erdmann, A. (1844): Undersökning af et nytt, Ytterjords- och Titansyrehaltigt Mineral från Buö, i trakten af Arendal i Norrige. Kongliga Svenska Vetenskaps-Akademiens Handlingar, 355-361
    USA
     
    • Rhode Island
      • Providence Co.
        • Johnston
    		George, Gilbert (1972). Latest Finds at Rhode Island Road Cuts(Micromounters of New England no. 17, Feb. 1972).
    AmMin 23:149
    www.minsocam.org/ammin/AM23/AM23_149.pdf.
        • South Kingstown
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    Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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