Quartz Amethyst Rock
by LeeAnn McLaneGoetz McLaneGoetzStudioLLCcom
Title
Quartz Amethyst Rock
Artist
LeeAnn McLaneGoetz McLaneGoetzStudioLLCcom
Medium
Photograph - Photpgraphy
Description
Quartz Amethyst Rock
National Museum of Natural History Washington DC
Quartz is the second most abundant mineral in the Earth's continental crust, after feldspar. It is made up of a continuous framework of SiO4 silicon�oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall formula SiO2.
There are many different varieties of quartz, several of which are semi-precious gemstones.
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June 10th, 2011
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LeeAnn McLane-Goetz
Quartz Amethyst Rock National Museum of Natural History Washington DC Quartz is the second most abundant mineral in the Earth's continental crust, after feldspar. It is made up of a continuous framework of SiO4 silicon oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall formula SiO2.