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This quartz from Paraíba, Brazil, contains inclusions of the hydrated copper silicate mineral gilalite...

This quartz from Paraíba, Brazil, contains inclusions of the hydrated copper silicate mineral gilalite...

GIA
This quartz from Paraíba, Brazil, contains inclusions of the hydrated copper silicate mineral gilalite, with one inclusion altered to the red copper oxide mineral cuprite due to a crack that allowed secondary fluids to attack and alter the inclusion. http://bit.ly/2JedfcP by Nathan Renfro; field of view 5.49 mm.
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