Sand under electron microscope

Autor:

NASA

Credit:

http://mix.msfc.nasa.gov/abstracts.php?p=743

Krótki link:

https://plwiki.pl/b/31453

źródło:

Wikimedia Commons

Wymiary:

270 x 210 Pixel (16138 Bytes)

Opis:

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.

Licencja:

Public domain

Komentarz do licencji:

US government, public domain