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Goldschmidtite

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The K analogue of isolueshite.
Found as inclusions in diamond.

Not to be confused with Goldschmidtite (of Hobbs) [https://www.mindat.org/min-7543.html], a synonym of sylvanite.


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Classification of GoldschmidtiteHide

Approved, Pending publication
Approval Year:
2018

Chemical Properties of GoldschmidtiteHide

Formula:
KNbO3

Crystallography of GoldschmidtiteHide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Pm3m
Setting:
Pm3m
Cell Parameters:
a = 3.9875(1) Å
Unit Cell V:
63.40 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.820(100)
1.994(50)
1.628(58)
1.410(36)
1.261(28)
1.066(38)
0.892(30)
0.814(43)
Comments:
From Type Description.

Type Occurrence of GoldschmidtiteHide

Place of Conservation of Type Material:
Type material is deposited in the mineralogical collections of the Royal Ontario Museum, 100 Queen's Park, Toronto, Ontario M5S 2C6, Canada, accession number M58208
Associated Minerals at Type Locality:

Synonyms of GoldschmidtiteHide

Other Language Names for GoldschmidtiteHide

Relationship of Goldschmidtite to other SpeciesHide

Other Members of this group:
BarioperovskiteBaTiO3Orth. mm2 : Amm2
Isolueshite(Na,La)NbO3Iso. m3m (4/m 3 2/m) : Pm3m
Loparite-(Ce)(Na,REE)Ti2O6
LueshiteNaNbO3Orth. mmm (2/m 2/m 2/m)
MacedonitePbTiO3Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
MegawiteCaSnO3Orth. mmm (2/m 2/m 2/m) : Pban
PerovskiteCaTiO3Orth. mmm (2/m 2/m 2/m) : Pnma
TausoniteSrTiO3Iso. 4 3m

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 GoldschmidtiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Meyer, N.A., Wenz, M.D., Walsh, J.P.S., Jacobsen, S.D., Locock, A.J. and Harris, J.W. (2018) Goldschmidtite, IMA 2018-034. CNMNC Newsletter No. 44, August 2018, page xxx; Mineralogical Magazine: 82: xxx–xxx.

Internet Links for GoldschmidtiteHide

Localities for GoldschmidtiteHide

ⓘ - 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.
South Africa (TL)
 
  • Free State Province
    • Xhariep District
      • Koffiefontein
Meyer, N.A., Wenz, M.D., Walsh, J.P.S., Jacobsen, S.D., Locock, A.J. and Harris, J.W. (2018) Goldschmidtite, IMA 2018-034. CNMNC Newsletter No. 44, August 2018, page xxx; Mineralogical Magazine: 82: xxx–xxx.
Mineral and/or Locality  
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