Caswellsilverite

Caswell Silver

Formula:

NaCrS₂

Colour:

Yellowish-grey, Grey

Lustre:

Metallic

Hardness:

2

Specific Gravity:

3.23 (Calculated)

Crystal System:

Trigonal

Name:

Named by Akihiko Okada and Klaus Keil in 1982 in honor of Caswell Silver (25 June 1916, New York City, New York, USA – 18 October 1988), geologist and President of the Sundance Oil Company from 1960-1984. He was an alumnus and benefactor of the Department of Geology and Institute of Meteoritics at the University of New Mexico.

Type Locality:

ⓘ Norton County meteorite, Norton Co., Kansas, USA

Classification of CaswellsilveriteHide

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Crystallography of CaswellsilveriteHide

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Related Minerals - Nickel-Strunz GroupingHide

Related Minerals - Dana Grouping (8th Ed.)Hide

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

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Localities for CaswellsilveriteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.

Antarctica
Eastern Antarctica Queen Maud Land Queen Fabiola Mts (Yamato Mts) ⓘ Yamato 691 meteorite (Y-691)	Brearley, A. J. & Jones, R. H. (1998): Chondritic Meteorites. In: Planetary Materials (Papike, J. J., Editor): Chapter 3, 398 pages. Mineralogical Society of America: Washington, DC, USA. (1998)
China
Guizhou Guiyang Qingzhen Co. ⓘ Qingzhen meteorite	Handbook of Mineralogy
India
Bihar Muzaffarpur ⓘ Parsa meteorite	Nehru, C. E., Prinz, M., Weisberg, M. K. & Delaney, J. S. (1984) Parsa: an Unequilibrated Enstatite Chondrite (uec) with an Aubrite-Like Impact Melt Clast (abstract), Lunar and Planetary Science XV, 597-598. (March 1984)
USA (TL)
Kansas Norton Co. ⓘ Norton County meteorite (TL)	Am Min 67:132-136; Okada, A., Keil, K., Leonard, B. F., & Hutcheon, I. D. (1984). Schöllhornite, Na0. 3 (H2O) 1 [CrS2] a New Mineral in the Norton County Enstatite Achondrite. Meteoritics, 19, 284.
Texas Brewster Co. Marathon Gage Ranch ⓘ Pena Blanca Spring meteorite	Fahey, A., Gary R. Huss, Gerald J. Wasserburg & Katherina Lodders (1995). REE Abundances and CR Isotopic Composition of Oldhamite and Associate Minerals from the Pena Blanca Spring Aubrite. Abstracts of the Lunar and Planetary Science Conference, vol. 26, p. 385.