Ruby
by Charles D. Winters
Title
Ruby
Artist
Charles D. Winters
Medium
Photograph - Photograph
Description
A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). The red color is caused mainly by the presence of the element chromium. Its name comes from ruber, Latin for red. Other varieties of gem-quality corundum are called sapphires. The ruby is considered one of the four precious stones, together with the sapphire, the emerald, and the diamond.
Uploaded
October 16th, 2016
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