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Could this be topaz or quartz? Hardness is morethan a quartz

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asked Dec 21, 2017 by Gopillm (770 points)

1 Answer

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Not quartz, I believe. Yellow staining may be limonite. Could be topaz, diamond, even beryl. Sillimanite is also harder than some quartz.
answered Dec 21, 2017 by Weasel (46,530 points)