File:Manganese-Oxides-242669.jpg

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Description
English: Manganese Oxides
Locality: Mid-Atlantic Ridge complex, Atlantic Ocean (Locality at mindat.org)
Size: 3.8 x 3.3 x 2.7 cm.
Manganese nodules are rock concretions on the sea bottom formed of concentric layers of iron and manganese hydroxides around a core. Nodules vary in size from tiny particles visible only under a microscope to large pellets more than 20 cm across. However, most nodules are between 5 and 10 cm in diameter, about the size of potatoes. Their surface is generally smooth, sometimes rough, mammilated (knobby) or otherwise irregular. The bottom, buried in sediment, is generally rougher than the top. This earthy brown specimen is derived from a hot springs vent associated with volcanic activity on the deep sea bottom. Light weight for its size, it weighs only 27 grams. Ex. Tarnowski Collection.
Deutsch: Manganoxid
Fundort: Mittelatlantischer Rücken, Atlantischer Ozean (Fundort bei mindat.org)
Größe: 3.8 x 3.3 x 2.7 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-242669.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
attribution share alike
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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current14:42, 27 April 2010Thumbnail for version as of 14:42, 27 April 2010672 × 750 (136 KB)RKBot (talk | contribs)== {{int:filedesc}} == {{Information |Description= {{en|1=Manganese Oxides :: Locality: Mid-Atlantic Ridge complex, Atlantic Ocean ([http://www.mindat.org/loc-16805.html Locality at mindat.org]) :: Size: 3.8 x 3.3 x 2.7 c

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