File:Azurite-Malachite-173871.jpg

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Description
English: Azurite, Malachite
Locality: Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia (Locality at mindat.org)
Size: 10.6 x 4.4 x 2.6 cm.
The Perkin Sams Pocket is so named because, in the early 1980s, Houston oilman Perkin Sams bought nearly the whole pocket for his collection and thus for the Houston Museum of Natural History. There is a remarkable story of this find, and to this day you can go to Houston and see basketball-sized crystals from this pocket, preserved in pristine condition. However, since most went to the museum, very few got out to the private market, largely in the form of private placements by people involved in handling the larger quantity, one assumes. This piece ended up in the Marshall Sussman collection, where I first saw it some years ago in the mid 1990s. To this day, it remains the most elegant example of the pocket I have seen. The pocket is characterized by this bicolor effect of malachite pseudomorphing the centers of azurite crystals, leaving corners and perhaps one edge as pure azurite in the process. It is strange, but nearly all crystals from the pocket show this effect. However, the crystal habit of the pocket can most charitably be described as "blocky" and robust...usually the crystals are more squarish. This splayed, complete-all-around crystal though, with its tapering base and broad, perfect termination, is as good as it gets for the pocket.
Deutsch: Azurit, Malachit
Fundort: Tsumeb Mine (Tsumcorp Mine), Tsumeb, Region Otjikoto (Oshikoto), Namibia (Fundort bei mindat.org)
Größe: 10.6 x 4.4 x 2.6 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-173871.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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Rob Lavinsky, the copyright holder of this work, hereby publishes it under the following license:
w:en:Creative Commons
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
Attribution: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
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current20:25, 16 April 2010Thumbnail for version as of 20:25, 16 April 2010420 × 800 (106 KB)RKBot (talk | contribs)== {{int:filedesc}} == {{Information |Description= {{en|Azurite, Malachite :: Locality: Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto (Oshikoto) Region, Namibia ([http://www.mindat.org/loc-2428.html

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