Faili:Sand under electron microscope.jpg

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Sand_under_electron_microscope.jpg(piseli 270 × 210, saizi ya faili: 16 KB, aina ya MIME: image/jpeg)

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Muhtasari

Maelezo Grains of so-called “Ottawa Silica Sand” under an electron microscope. Magnification 150x. “Ottawa Sand” is a by-product of hydraulic mining of Ordovician orthoquartzites of the St. Peter Sandstone Formation of the Paleozoic intracratonic Illinois Basin.
Tarehe not specified
Chanzo http://mix.msfc.nasa.gov/abstracts.php?p=743
Mwandishi NASA
Ruhusa
(Kutumia faili tena)
US government, public domain

Hatimiliki

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Tarehe/SaaPicha ndogoVipimoMtumiajiMaelezo
sasa hivi21:25, 28 Aprili 2006Picha ndogo ya toleo la 21:25, 28 Aprili 2006270 × 210 (16 KB)Holly Cheng{{Information | Description=Sand under an electron microscope. | Source=http://exploration.nasa.gov/articles/06dec_dunes.html | Date=not specified | Author=NASA | Permission=US government, public domain }}

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