Whilst quartz is one of the most common minerals found in the earth's crust, Gold is much rarer. The two sometimes occur together quartz veins known a

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Whilst quartz is one of the most common minerals found in the earth's crust, Gold is much rarer. The two sometimes occur together quartz veins known as 'reefs'.

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Photo credit: © NATURAL HISTORY MUSEUM, LONDON/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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