Double-ended Quartz Crystal
by Dr Juerg Alean
Title
Double-ended Quartz Crystal
Artist
Dr Juerg Alean
Medium
Photograph - Photograph
Description
Double-ended quartz crystal. So-called 'phantom structures' in the left part of the crystal show successive stages of growth. As the crystal grew, clay minerals were deposited on the surface of the quartz crystal, but later became embedded as the growth continued. This specimen, about 3 centimetres across, is from the Lugnez valley, Grisons, Switzerland.
Uploaded
June 30th, 2016
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