Crystals Of Smoky Quartz
by Roberto De Gugliemo/science Photo Library
Title
Crystals Of Smoky Quartz
Artist
Roberto De Gugliemo/science Photo Library
Medium
Photograph - Photograph
Description
Crystals of smoky quartz. Quartz (silicon oxide) is colourless when pure, but the presence of impurities can give a range of colours including white, pink, yellow, blue, green and smoky brown. This specimen measures 18 x 14 cm and was found in Pedra Alta's Mine, Sao Geraldo do Baixio, Brazil.
Uploaded
October 4th, 2018
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