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Finchite

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About FinchiteHide

USGS scientist Warren Finch.
Formula:
Sr(UO2)2(V2O8)·5H2O
Crystal System:
Orthorhombic
Name:
In honor of USGS scientist Warren Finch (1924—2014), whose career had been defined by the study of uranium and the exploration for sources of it. In fact, not only did he inaugurate a program at USGS devoted to uranium and thorium, he was recognized internationally for his expertise. For decades, Warren served the International Atomic Energy Agency as the U.S. representative and technical expert in the areas of uranium resources, uranium resource estimation, and particularly the geology of sandstone-hosted uranium deposits. He also wrote definitive studies of uranium that are still cited today.
The Sr analogue of francevillite. Unique combination of elements.


Classification of FinchiteHide

Approved, Pending publication

Chemical Properties of FinchiteHide

Formula:
Sr(UO2)2(V2O8)·5H2O
IMA Formula:
Sr(UO2)2(V2O8) · 5H2O

Crystallography of FinchiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbcn
Cell Parameters:
a = 8.498(5) Å, b = 10.363(6) Å, c = 16.250(9) Å
Ratio:
a:b:c = 0.82 : 1 : 1.568
Unit Cell V:
1,431.05 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.13(75)
4.25(64)
4.06(100)
3.20(45)
2.98(68)
2.94(47)
2.11(48)
2.03(55)

Type Occurrence of FinchiteHide

Place of Conservation of Type Material:
Cotype material is deposited in the mineralogical collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue numbers 66476 and 66477

Synonyms of FinchiteHide

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 FinchiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Spano, T., Olds, T.A., Hall, S.M., Kampf, A.R., Lowers, H. and Burns, P.C. (2017) Finchite, IMA 2017-052. CNMNC Newsletter No. 39, October 2017, page 1282; Mineralogical Magazine, 81, 1279–1286.

Internet Links for FinchiteHide

Localities for FinchiteHide

ⓘ - 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.
USA (TL)
 
  • Texas
    • Martin Co.
      • Lamesa
Spano, T., Olds, T.A., Hall, S.M., Kampf, A.R., Lowers, H. and Burns, P.C. (2017) Finchite, IMA 2017-052. CNMNC Newsletter No. 39, October 2017, page 1282; Mineralogical Magazine, 81, 1279–1286.
  • Utah
    • San Juan Co.
      • La Sal District (Paradox Valley District)
        • La Sal
EDS and XRD analysis by Tony Kampf.
Mineral and/or Locality  
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