PO-breccia.jpg
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Summary
Description PO-breccia.jpg |
English:
Silicified and mineralized breccia, light gray is mostly dolomite with a little translucent quartz. Dark gray is jasperoid and ore minerals. Veinlet along lower edge of specimen contains sphalerite in carbonates, Pend Oreille mine. Pend Oreille County, Washington.
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Source | 1936. Plate 23-B, U.S.Geological Survey Professional paper 202. 1943. http://libraryphoto.cr.usgs.gov/htmllib/btch289/btch289j/btch289z/btch289/pcf00091.jpg , Transferred from en.wikipedia to Commons by Danmichaelo . |
Author |
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author
information.
|
Licensing
Public domain Public domain false false |
This image is in the
public domain
in the United States because it only contains materials that originally came from the
United States Geological Survey
, an agency of the
United States Department of the Interior
. For more information, see
the official USGS copyright policy
.
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Original upload log
The original description page was
here
. All following user names refer to en.wikipedia.
- 2008-05-12 17:55 Tillman 1400×1349× (1442407 bytes) Silicified and mineralized breccia, light gray is mostly dolomite with a little translucent quartz. Dark gray is jasperoid and ore minerals. Veinlet along lower edge of specimen contains sphalerite in carbonates, Pend Oreille mine. Pend Oreille County, Wa