Kampfite
Template:Short description Script error: No such module "Infobox".Script error: No such module "Check for unknown parameters". Kampfite is a rare barium silicate–carbonate–halide mineral with the chemical formula Template:Chem2. Discovered in 1964 and described in 2001, it is named after Anthony R. Kampf. The mineral is known only from Fresno County, California.
Description
Kampfite is translucent and light blue-gray in color. Specimens occur as irregular masses up to Script error: No such module "convert". in size.[1]
Composition and structure
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The structure consists of double layers of tetrahedra connected by barium-containing polyhedra. It is this layering which causes kampfite's one perfect cleavage.Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters".Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters". Kampfite shares chemical and structural similarities with cymrite.Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters". As of 2007[update]Script error: No such module "Check for unknown parameters"., it is the only known barium silicate carbonate aside from fencooperite.Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters".
Occurrence
Kampfite has been found in association with celsian, fresnoite, macdonaldite, pyrrhotite, titantaramellite, traskite, and witherite.[1] The mineral is known only from locations in Fresno County, California.[2][1] Kampfite is found in quartz-rich regions of sanbornite rocksScript error: No such module "Footnotes".Script error: No such module "Check for unknown parameters". within gneiss which has undergone contact metamorphism associated with an adjacent granodiorite intrusive.[1]
History
The mineral discovered in 1964 by Robert Walstrom from the Esquire #1 claim of the Rush Creek deposit in eastern Fresno County.Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters". It was described in 2001 in The Canadian Mineralogist.Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters". The mineral was named kampfite in honor of Anthony Robert Kampf (1948–), curator of the Los Angeles County Museum of Natural History, for his crystallography work on new and rare minerals.Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters".
Co-type specimens are held by the University of British Columbia and the Geological Survey of Canada.Script error: No such module "Footnotes".Script error: No such module "Check for unknown parameters".
References
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Bibliography
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External links
- Photos of kampfite from mindat.org