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File:Chrysocolla-Tyrolite-Clinotyrolite-202106.jpg

Chrysocolla-Tyrolite-Clinotyrolite-202106.jpg ‎(800 × 503 pixels, file size: 144 KB, MIME type: image/jpeg)

Summary

Description
English: Chrysocolla, Tyrolite, Clinotyrolite
Locality: San Simon Mine, Santa Rosa-Huantajaya District, Iquique Province, Tarapacá Region, Chile (Locality at mindat.org)
Size: 14.1 x 8.0 x 7.8 cm.
This specimen was presented to the academy by the famed Dr. Domeyko in the late 1800s, who did much work on the rare minerals of Chile and Argentina. Regardless of the chemistry, the specimen has merit as a display piece of beautiful copper combinations from Chile. This piece has beautiful, powder-blue chrysocolla forming as stalactitic growths and as a thin carpet in the few hollow vugs inside a literal boulder of nearly solid tyrolite. On analysis by modern equipment, the matrix material shows to be tyrolite, clinotyrolite, and possibly other related species admixed (XRAY and powder, Bart Cannon's lab, 2008). However, apparently the official mineralogy of tyrolite classification is confusing and has changed over time. Clinotyrolite is often considered a species by many people, though without IMA approval. I quote MINDAT's page on the matter verbatim to make sure I do not mistakenly convey the science: Since it is well-known that also carbonate-free varieties of tyrolite exist, "tyrolite" may actually represent two or more minerals/polytypes. At least two monoclinic polytypes of tyrolite are known (Krivovichev et al., 2006); one of them seems to be identical to "clinotyrolite". Note that this is the first report of the locality to MINDAT for tyrolite occurrence, but it is likely that this rare species is present on other old specimens of "chrysocolla" from Chile. Ex. Academy of Natural Sciences Philadelphia Collection.
Deutsch: Chrysokoll, Tirolit, Klinotirolit
Fundort: San Simon Mine, Distrikt Santa Rosa-Huantajaya, Provinz Iquique, Región de Tarapacá, Chile (Fundort bei mindat.org)
Größe: 14.1 x 8.0 x 7.8 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-202106.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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current14:20, 27 April 2010Thumbnail for version as of 14:20, 27 April 2010800 × 503 (144 KB)RKBot== {{int:filedesc}} == {{Information |Description= {{en|1=Chrysocolla, Tyrolite, Clinotyrolite :: Locality: San Simon Mine, Santa Rosa-Huantajaya District, [[:en:Iquique Province|Iquique P
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