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Braitschite-(Ce)

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Cane Creek potash mine (Texas Gulf Sulfur), Interriver District, Grand Co., Utah, USA
© Brent Thorne

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Formula:
(Ca,Na
 
2
)
 
7
(Ce,La)
 
2
B
 
22
O
 
43
 · 7H
 
2
O
System:HexagonalColour:Colorless to white
Name:For Professor Dr. Otto Braitsch (1921 - 1966), University of Freiburg, Germany.
This page provides mineralogical data about Braitschite-(Ce).

Classification of Braitschite-(Ce)

IMA status:Approved
Strunz 8th edition ID:5/K.10-10
Nickel-Strunz 10th (pending) edition ID:6.H0.10

6 : BORATES
H : Unclassified borates
0 :
Dana 8th edition ID:26.7.6.1

26 : HYDRATED BORATES CONTAINING HYDROXYL OR HALOGEN
7 : Miscellaneous
Hey's CIM Ref.:9.5.3

9 : Borates
5 : Borates of Al and rare earths
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Type Occurrence of Braitschite-(Ce)

Type Locality:Cane Creek potash mine (Texas Gulf Sulfur), Interriver District, Grand Co., Utah, USA
General Appearance of Type Material:Hexagonal plates to 70 microns
Place of Conservation of Type Material:U. S. National Museum, Catalog Number 120627.
Geological Setting of type material:Evaporite deposit

Physical Properties of Braitschite-(Ce)

Lustre:Vitreous
Colour:Colorless to white
Density (measured):2.903(2) g/cm3
Density (calculated):2.837 g/cm3

Crystallography of Braitschite-(Ce)

Crystal System:Hexagonal
Cell Parameters:a = 12.150Å, c = 7.378Å
Ratio:a:c = 1 : 0.607
Unit Cell Volume:V 943.24 ų (Calculated from Unit Cell)

Optical Data of Braitschite-(Ce)

Type:Uniaxial (+)
RI values: nω = 1.646 nε = 1.647
Maximum Birefringence:δ = 0.001

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Chemical Properties of Braitschite-(Ce)

Formula:
(Ca,Na
 
2
)
 
7
(Ce,La)
 
2
B
 
22
O
 
43
 · 7H
 
2
O
Essential elements:B, Ca, Ce, H, O
All elements listed in formula:B, Ca, Ce, H, La, Na, O

Relationship of Braitschite-(Ce) to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
6.H0.40Ekaterinite
Ca
 
2
(B
 
4
O
 
7
)(Cl,OH)
 
2
 · 2H
 
2
O
6.H0.50Canavesite
Mg
 
2
(HBO
 
3
)(CO
 
3
) · 5H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
9.5.2Sinhalite
MgAl(BO
 
4
)

Other Names for Braitschite-(Ce)

Synonyms:
IMA1967-029
Other Languages:

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 Braitschite-(Ce)

Reference List:

- +
American Mineralogist: 53: 1081-1095.

Internet Links for Braitschite-(Ce)

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  • Raman and XRD data at RRUFF project
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  • Braitschite-(Ce) details from Handbook of Mineralogy (PDF)
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    • Localities for Braitschite-(Ce)

    The 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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    (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.
    USA
     
    • Utah
      • Grand Co.
        • Interriver District
    		Am Min 53:1081-1095
    UGMS Bull 117 Minerals and Mineral Localities of Utah
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