File:Schalenblende-322535.jpg

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Schalenblende-322535.jpg ‎(465 × 481 pixels, file size: 189 KB, MIME type: image/jpeg)

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Description
English: Sphalerite, variety Schalenblende
Locality: Gmina Olkusz, Olkusz Co., Lesser Poland Voivodeship, Poland
Size: 9.3 cm x 5.3 cm x 2.1 cm
A beautiful polished slab of "schalenblende" from a classic locale in Poland. The striking concentric layers with reniform surfaces consist of alternating bands of sphalerite (brown to yellow), marcasite (outer rim) and galena (grey inclusions). Wurtzite (as often reported to be a component of the Polish Schalenblende) could not be detected by XRD analysis, according to a report. The color variation of the sphalerite is due to grain size and (minor) to the iron content. It is regarded as a classic lapidary material. A very fine example. Ex. Howard Belsky Collection. Howard started as a mineral dealer at age 13 in 1972, became a sophisticated dealer and died tragically at age 28 in 1987.
Deutsch: Sphalerit, Varietät Schalenblende
Fundort: Gmina Olkusz, Woiwodschaft Kleinpolen, Polen
Größe: 9,3 cm x 5,3 cm x 2,1 cm
Date before July 2010
date QS:P,+2010-07-00T00:00:00Z/7,P1326,+2010-07-00T00:00:00Z/10
Source https://www.mindat.org/photo-322535.html (Mindat-ID TFT-EF0)
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
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creator QS:P170,Q56247090
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Rob Lavinsky, the copyright holder of this work, hereby publishes it under the following license:
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Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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current05:54, 18 June 2019Thumbnail for version as of 05:54, 18 June 2019465 × 481 (189 KB)Ra'ike (talk | contribs)== {{int:filedesc}} == {{Information |Description= {{en|1= Sphalerite, variety ''Schalenblende'' :: Locality: Gmina Olkusz, Olkusz Co., Lesser Poland Voivodeship, Poland :: Size: 9.3 cm x 5.3 cm x 2.1 cm :: A beautiful polished slab of "schalenblende" from a classic locale in Poland. The striking concentric layers with reniform surfaces consist of alternating bands of sphalerite (brown to yellow), marcasite (outer rim) and galena (grey inclusions). Wurtzite (as often re...

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