File:Ramsdellite-264117.jpg

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Ramsdellite-264117.jpg (600 × 368 pixels, file size: 78 KB, MIME type: image/jpeg)

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Description
English: Ramsdellite
Locality: Mistake Mine (Box Canyon deposits), Sam Powell Peak, Box Canyon District, Yavapai County, Arizona, USA (Locality at mindat.org)
Size: 4.9 x 2.7 x 1.3 cm.
Ramsdellite is a rare manganese oxide. This is a fine intergrown plate of equant, splendent, black ramsdellite crystals to 6 mm across, which is large for this new find. Ramsdellite from this small and defunct mine in a remote corner of Arizona was first found, I am told, in the early 1900s. However, the locality was apparently lost for some time and only rediscovered by the father/son team of Roy Jones and Dick Jones in the 1960s. Some of this material came out then (Roy says about 6 flats). I have seen it turn up, from time to time, in old US collections. However, it has remained fairly rare on the market. This recent find appeared literally in the middle of the Tucson Show and surprised me. It features very fine quality Ramsdellite crystals on manganese-rich matrix, and the crystals have excellent lustre and jet-black color to them. There was an old MR article about the Mistake Mine in one of the Arizona issues, and also this is referenced in Mineralogy of Arizona by Bideaux, et al.
Deutsch: Ramsdellit
Fundort: Mistake Mine (Box Canyon deposits), Sam Powell Peak, Box Canyon District, Yavapai County, Arizona, Vereinigte Staaten (Fundort bei mindat.org)
Größe: 4.9 x 2.7 x 1.3 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-264117.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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