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Kuratite

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Dr. Gero Kurat
Formula:
Ca2(Fe52+Ti)O2[Si4Al2O18]
System:
Triclinic
Name:
Named for Dr. Gero Kurat (1938-2009), meteorite researcher and Curator of the Meteorite Collection at the Natural History Museum Vienna. He had originally described the mineral as an unnamed phase.
This page provides mineralogical data about Kuratite.

Classification of Kuratite

Approved 2013
mindat.org URL:
http://www.mindat.org/min-44312.html
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Type Occurrence of Kuratite

General Appearance of Type Material:
As euhedral to anhedral crystals, < 20 μm in size, within a rim of olivine intergrowths at the contact between Fe sulfide spherules and the space-filling hedenbergite in the D'Orbigny meteorite
Place of Conservation of Type Material:
Type material is deposited in the collections of the Naturhistorisches Museum Wien, Vienna, Austria, inventory number Section D’Orbigny C-N1172-NH Wien
Geological Setting of Type Material:
In angrite (an achondritic meteorite)
Associated Minerals at Type Locality:

Crystallography of Kuratite

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 10.513(7) Å, b = 10.887(7) Å, c = 9.004(18) Å
α = 105.97(13)°, β = 96.00(12)°, γ = 124.82(4)°
Ratio:
a:b:c = 0.966 : 1 : 0.827
Morphology:
Euhedral to anhedral crystals. Faces observed: (0-11), (0-21) and (03-1)
Twinning:
twin plane(0-11)
X-Ray Powder Diffraction Data:
d-spacingIntensity
2.97(
2.72(
2.58(
2.44(
2.13(
2.12(
Comments:
From Type Description.

Chemical Properties of Kuratite

Formula:
Ca2(Fe52+Ti)O2[Si4Al2O18]
Essential elements:
All elements listed in formula:

Relationship of Kuratite to other Species

Other Members of Group:
AenigmatiteNa2Fe52+Ti(Si6O18)O2
KrinoviteNa2Mg4Cr23+(Si6O18)O2
WilkinsoniteNa2Fe42+Fe23+(Si6O18)O2

Other Names for Kuratite

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 Kuratite

Reference List:
Kurat et al. (2004): Geochimica et Cosmochimica Acta 68, 1901–1921. [as unnamed phase]

Hwang, S.-L., Shen, P., Chu, H.-T., Yui, T.-F., Varela, M.-E. and Iizuka, Y. (2014) Kuratite, IMA 2013-109. CNMNC Newsletter No. 19, February 2014, page 168; Mineralogical Magazine, 78, 165-170.

http://www.hou.usra.edu/meetings/lpsc2014/pdf/1818.pdf
http://www.sci-news.com/geology/science-kuratite-new-mineral-meteorite-01814.html

Internet Links for Kuratite

Localities for Kuratite

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.
Argentina (TL)
 
  • Buenos Aires
    • Coronel Suaréz
      • D'Orbigny
Kurat et al. (2004): Geochimica et Cosmochimica Acta 68, 1901–1921. [as unnamed phase]; Hwang, S.-L., Shen, P., Chu, H.-T., Yui, T.-F., Varela, M.-E. and Iizuka, Y. (2014) Kuratite, IMA 2013-109. CNMNC Newsletter No. 19, February 2014, page 168; Mineralogical Magazine, 78, 165-170; http://www.hou.usra.edu/meetings/lpsc2014/pdf/1818.pdf
Morocco
 
  • Souss-Massa-Draâ Region
    • Ouarzazate Province
      • Aoult
http://adsabs.harvard.edu/abs/2007AGUFM.P41A0219K (as rhönite); http://www.hou.usra.edu/meetings/lpsc2014/pdf/1818.pdf
Mineral and/or Locality  
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