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File:Krohnkite-238873.jpg

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Description
English: Kröhnkite
Locality: Chuquicamata Mine, Chuquicamata District, Calama, El Loa Province, Antofagasta Region, Chile (Locality at mindat.org)
Size: 10.8 x 8.3 x 4.0 cm.
This striking, vivid blue cabinet specimen was formerly in the collection of well-known collector Marion Stuart. Her accompanying card and unique plastic engraved label identify the mineral as leightonite, an ultra-rare copper sulfate, which typically has the crystal form seen on this piece. The Type Locality is the Chuquicamata Mine of Chile. Krohnkite is another ultra-rare copper sulfate, with similar color from Chuquicamata, but usually forms in lamellar growth of curved crystals in parallel bundles. Another dealer had this specimen X-rayed in May, 2008 and the report is included with the specimen. It was krohnkite on the rhyolite matrix, but in a very uncommon botryoidal/crust-like form. This specimen exhibits the most intense teal blue color I have ever seen in a natural mineral specimen and has great translucence. And the variation in blue color, in itself, is very noteworthy.
Deutsch: Kröhnkit
Fundort: Chuquicamata Mine, Distrikt Chuquicamata, Calama, Provinz El Loa, Región de Antofagasta, Chile (Fundort bei mindat.org)
Größe: 10.8 x 8.3 x 4.0 cm.
Date before March 2010
date QS:P,+2010-03-00T00:00:00Z/7,P1326,+2010-03-00T00:00:00Z/10
Source http://www.mindat.org/photo-238873.html
Author
Robert M. Lavinsky  (1972–)  wikidata:Q56247090
 
Alternative names
Robert Matthew Lavinsky; Lavinsky, Robert M.; Lavinsky R M
Description American mineral collector and mineral dealer
iRocks.com (Mineralogical Record)
Date of birth 13 December 1972 Edit this at Wikidata
Location of birth Columbus
Authority file
creator QS:P170,Q56247090
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Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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current03:20, 27 April 2010Thumbnail for version as of 03:20, 27 April 2010586 × 600 (93 KB)RKBot (talk | contribs)== {{int:filedesc}} == {{Information |Description= {{en|1=Kröhnkite :: Locality: Chuquicamata Mine, Chuquicamata District, Calama, El Loa Province, [[:en:Antofagasta Region|Antofagasta Reg

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