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Panguite

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Pangu
Formula:
(Ti,Al,Sc,Mg,Zr,Ca)1.8O3
Specific Gravity:
3.746 (Calculated)
Crystal System:
Orthorhombic
Name:
Pan Gu, the giant in ancient Chinese mythology, who created the world by separating the heaven and earth from chaos in the beginning, in allusion to the mineral with an ultra-refractory origin being among the first solid materials in the solar system.
It is one of the oldest minerals in the solar system.


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Classification of PanguiteHide

Approved
Approval Year:
2010

Physical Properties of PanguiteHide

Transparency:
Opaque
Density:
3.746 g/cm3 (Calculated)

Chemical Properties of PanguiteHide

Formula:
(Ti,Al,Sc,Mg,Zr,Ca)1.8O3
IMA Formula:
(Ti,Al,Sc,Mg,Zr,Ca)1.8O3

Crystallography of PanguiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbca
Setting:
Pbca
Cell Parameters:
a = 9.781(1) Å, b = 9.778(2) Å, c = 9.815(1) Å
Ratio:
a:b:c = 1 : 1 : 1.004
Unit Cell V:
938.7 ų
Z:
16

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.002(6)
3.995(7)
2.827(100)
1.732(18)
1.732(19)
1.729(19)
1.479(8)
1.475(9)

Type Occurrence of PanguiteHide

General Appearance of Type Material:
Irregular to subhedral grains, 500 nm to 1.8 μm in size.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Smithsonian Institution’s National Museum of Natural History, Washington DC, USA, catalogue number 7602
Geological Setting of Type Material:
In an ultra-refractory inclusion within an amoeboid olivine inclusion from the Allende CV3 carbonaceous chondrite.
Associated Minerals at Type Locality:

Synonyms of PanguiteHide

Fluorescence of PanguiteHide

Non-fluorescent.

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 PanguiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Ma, C., Tschauner, O., Rossman, G.R. and Liu, W. (2011) Panguite, IMA 2010-057. CNMNC Newsletter No. 7, February 2011, page 30; Mineralogical Magazine, 75, 27-31.
Ma, C., Tschauner, O., Beckett, J.R., Rossman, G.R. & Liu, W. (2012): Panguite, (Ti4+,Sc,Al,Mg,Zr,Ca)1.8O3, a new ultra-refractory titania mineral from the Allende meteorite: Synchrotron micro-diffraction and EBSD. American Mineralogist, 97, 1219-1225.

Internet Links for PanguiteHide

Localities for PanguiteHide

ⓘ - 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.
Italy
 
  • Emilia-Romagna
    • Ferrara Province
      • Vigarano Mainarda
        • Vigarano Pieve
Ma, C., Yoshizaki, T., Krot, A.N., Beckett, J.R., Nakamura, T., Nagashima, K., Muto, J., and Ivanova, M.A. (2017b) Discovery of rubinite, Ca3Ti3+2Si3O12, a new garnet mineral in refractory inclusions from carbonaceous chondrites. 80th Annual Meeting of the Meteoritical Society (LPI Contrib. No. 1987), paper id. 6023.
Mexico (TL)
 
  • Chihuahua
    • Pueblito de Allende
Ma, C., Tschauner, O., Rossman, G.R. and Liu, W. (2011) Panguite, IMA 2010-057. CNMNC Newsletter No. 7, February 2011, page 30; Mineralogical Magazine, 75, 27-31
Mineral and/or Locality  
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