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Ulexite-39574.jpg (400 × 348 pixels, file size: 36 KB, MIME type: image/jpeg)

Summary

Description
English: Ulexite
Locality: Boron, Kramer District, Kern County, California, USA (Locality at mindat.org)
This is a great example of the transparent and colorless mineral known as "TV rock" because it has optical properties like fiber-optic cable. It is transparent along the perfect vertical axis, while opaque along other axes. When polished, as this is, you can hold it over writing and witness this phenomenon. Is this a fine mineral specimen? No, not really. But it is really "neat" material and I wasn't sure those outside of California had been exposed to it. It does get sold widely to museums and rock shops, again labelled as "tv rock" or "fiber-optic rock". Fun for kids... 4.3 x 3.1 x 1.9 cm
Deutsch: Ulexit
Fundort: Bor, Kramer District, Kern County, Kalifornien, Vereinigte Staaten (Fundort bei mindat.org)
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-39574.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

Licensing

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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  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
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Date/TimeThumbnailDimensionsUserComment
current13:11, 25 April 2010Thumbnail for version as of 13:11, 25 April 2010400 × 348 (36 KB)RKBot== {{int:filedesc}} == {{Information |Description= {{en|1=Ulexite :: Locality: Boron, Kramer District, Kern County, California, USA ([http://www.mindat.org/loc-3438.h

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