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Braunerite

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Formula:
K2Ca(UO2)(CO3)3 · 6H2O
System:
Monoclinic
New structure type. Chemically similar to línekite.


Classification of Braunerite

Approved, Pending publication

Chemical Properties of Braunerite

IMA Formula:
K2Ca(UO2)(CO3)3 · 6H2O
Elements listed in formula:

Crystallography of Braunerite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Space Group Setting:
P21/c
Cell Parameters:
a = 17.6725(12) Å, b = 11.6065(5) Å, c = 29.673(3) Å
β = 101.780(8)°
Ratio:
a:b:c = 1.523 : 1 : 2.557
Unit Cell Volume:
V 5,958.22 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:
d-spacingIntensity
14.64(100)
7.29(65)
7.04(20)
6.25(15)
5.71(28)
4.991(18)
4.860(18)
4.118(50)

Type Occurrence of Braunerite

Place of Conservation of Type Material:
(1) collections of the Department of Mineralogy and Petrology, National Museum, Prague, Czech Republic(catalogue number P1P 14/2015); (2) collections of the Natural History Museum of Los Angeles County, USA catalogue number 65631

Other Names for Braunerite

Name in Other Languages:

Other Information

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 Braunerite

Reference List:
Plášil, J., Mereiter, K., Kampf, A.R., Hloušek, J., Škoda, R., Čejka, J., Němec, I. and Ederová, J. (2016) Braunerite, IMA 2015-123. CNMNC Newsletter No. 31, June 2016, page 692; Mineralogical Magazine: 80: 691–697;

Internet Links for Braunerite

mindat.org URL:
http://www.mindat.org/min-47780.html
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Localities for Braunerite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Czech Republic (TL)
 
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
          • Jáchymov (St Joachimsthal)
Plášil, J., Mereiter, K., Kampf, A.R., Hloušek, J., Škoda, R., Čejka, J., Němec, I. and Ederová, J. (2016) Braunerite, IMA 2015-123. CNMNC Newsletter No. 31, June 2016, page 692; Mineralogical Magazine: 80: 691–697
Mineral and/or Locality  
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