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Does anyone know if a natural rock that has the three variants: Cristobalite, Tridymite and regular quartz?

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asked Mar 3 by Diane Morrow (120 points)

1 Answer

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Can you please explain your question in a bit more detail? Are you asking if these 3 silica types can form together in one specimen?
answered Apr 27 by hershel (47,740 points)
 


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