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About Braitschite-(Ce)Hide

(Ca,Na2)7(Ce,La)2B22O43 · 7H2O
Formula based on the crystal structure refinement: Ca6.15Na0.85REE2.08[B6O7(OH)3(O,OH)3]4(H2O). It may thus be simplified as NaCa6(Ce,La)2[B6O7(OH)3(O,OH)3]4(H2O) (Rowland et al., 2011)
Colorless to white
Specific Gravity:
Crystal System:
Named by O.B. Raup, A.J. Gude, E.J. Dwornik, F. Cuttitta, and H.J. Rose in 1968 in honor of Otto Braitsch (17 December 1921 - 25 July 1966), professor at the University of Freiburg, Germany, for his contributions to evaporite mineralogy and geochemistry. The suffix follows IMA naming rules an indicates the dominant rare-earth element.

The name is pronounced brītsch'ite.
This page provides mineralogical data about Braitschite-(Ce).

Classification of Braitschite-(Ce)Hide

Approval Year:
First Published:

H : Unclassified borates
0 :

7 : Miscellaneous

9 : Borates
5 : Borates of Al and rare earths

Physical Properties of Braitschite-(Ce)Hide

Colorless to white
2.903(2) g/cm3 (Measured)    2.837 g/cm3 (Calculated)

Optical Data of Braitschite-(Ce)Hide

Uniaxial (+)
RI values:
nω = 1.646 nε = 1.647
Max Birefringence:
δ = 0.001
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of Braitschite-(Ce)Hide

(Ca,Na2)7(Ce,La)2B22O43 · 7H2O

Formula based on the crystal structure refinement: Ca6.15Na0.85REE2.08[B6O7(OH)3(O,OH)3]4(H2O). It may thus be simplified as NaCa6(Ce,La)2[B6O7(OH)3(O,OH)3]4(H2O) (Rowland et al., 2011)
IMA Formula:
Ca6.15Na0.85REE2.08[B6O7(OH)3(O,OH)3]4 · H2O

Crystallography of Braitschite-(Ce)Hide

Crystal System:
Cell Parameters:
a = 12.150 Å, c = 7.378 Å
a:c = 1 : 0.607
Unit Cell V:
943.24 ų (Calculated from Unit Cell)
Simple hexagonal plates, having only prism and pinacoid faces.

Type Occurrence of Braitschite-(Ce)Hide

General Appearance of Type Material:
Rounded nodules in anhydrite. The nodules are a mixture of minerals. The braitschite-(Ce) is minute hexagonal plates.
Place of Conservation of Type Material:
U. S. National Museum, Catalog Number 120627.
Geological Setting of Type Material:
Evaporite deposit
Associated Minerals at Type Locality:

Synonyms of Braitschite-(Ce)Hide

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Braitschite-(Ce) associated with AnhydriteCaSO4

Related Minerals - Nickel-Strunz GroupingHide

6.H0.15SatimoliteKNa2(Al5Mg2)[B12O18(OH)12](OH)6Cl4·4H2OTrig. 3m (3 2/m) : R3m
6.H0.20IquiqueiteK3Na4Mg(CrO4)B24O39(OH) · 12H2OHex.
6.H0.25WardsmithiteCa5Mg[B4O7]6 · 30H2OHex.
6.H0.35HalurgiteMg4[B8O13(OH)2]2·7H2OMon. 2/m : P2/b
6.H0.40EkateriniteCa2(B4O7)(Cl,OH)2 · 2H2OHex.
6.H0.45VitimiteCa6[B14O19](SO4)(OH)14 · 5H2OMon.
6.H0.50CanavesiteMg2(HBO3)(CO3) · 5H2OMon.
6.H0.55QilianshaniteNaHCO3 · H3BO3 · 2H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

9.5.2SinhaliteMgAl(BO4)Orth. mmm (2/m 2/m 2/m) : Pnma

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 Braitschite-(Ce)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Raup, O.B., Gude, A.J., Dwornik, E.J., Cuttitta, F., Rose, H.J. (1968) Braitschite, a new hydrous calcium rare-earth borate mineral from the Paradox Basin, Grand County, Utah. American Mineralogist: 53: 1081-1095.
Nickel, E.H., Mandarino, J.A. (1987) Procedures involving the IMA Commission on New Minerals and Mineral Names and guidelines on mineral nomenclature. American Mineralogist: 72: 1031-1042.
Rowland, C.E., Cahill, C.L., Post, J.E. (2011) The structure of braitschite, a calcium rare earth borate. American Mineralogist: 96: 197-201.

Internet Links for Braitschite-(Ce)Hide

Localities for Braitschite-(Ce)Hide

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