Agate #7
by Science Photo Library
Title
Agate #7
Artist
Science Photo Library
Medium
Photograph - Photograph
Description
Agate. Agate is an aggregate of different forms of silica (SiO2) that have formed concentric bands within a geode. A geode forms when the silica precipitates from liquid onto the inside surface of an empty pocket in a host rock. Specimen from Bull Canyon, Nevada, USA, measuring approximately 12.5 x 15 centimetres.
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September 23rd, 2018
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