File:Ettringite-Oyelite-279103.jpg

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Description
English: Ettringite, Oyelite
Locality: N'Chwaning Mines, Kuruman, Kalahari manganese fields, Northern Cape Province, South Africa (Locality at mindat.org)
Size: 6.5 x 3.2 x 2.4 cm.
This ethereal nicely-sized specimen features a 6 cm long doubly-terminated ettringite crystal perched on a small knoll of soft white matrix. The crystal is a soft lemon-yellow color, translucent, and complete-all-around except for a small, shallow natural contact in the upper-right on one face. It is stark and dramatic, as it rises from the well-trimmed matrix. It has an unusual shimmering surface sheen to it, as do most of these. It is very rare to find large ettringites on matrix, particularly with such good display, from past finds (mostly in the 1980s). The matrix is a manganese-rich ore completely covered with a blanket of soft Oyelite (perhaps with Bultfonteinite) deposition on its front side. It is accented on the backside with sparkling micro-hausmannite crystals.
Deutsch: Ettringit, Oyelith
Fundort: N'Chwaning Mines, Kuruman, Kalahari manganese fields, Nordkap , Südafrika (Fundort bei mindat.org)
Größe: 6.5 x 3.2 x 2.4 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-279103.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 Edit this at Wikidata
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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current09:25, 27 April 2010Thumbnail for version as of 09:25, 27 April 2010682 × 1,024 (75 KB)RKBot (talk | contribs)== {{int:filedesc}} == {{Information |Description= {{en|1=Ettringite, Oyelite :: Locality: N'Chwaning Mines, Kuruman, Kalahari manganese fields, [[:en:Northern Cape|Northern Cape Pr

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