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How do I test quartz from diamond?

Answer:

Have you ever heard of the Moh's scale?

I believe quartz ranks 7 and diamond 10. If you can obtain topaz which is more common then Corundum and it leaves a streak on the mineral then the mineral is Quartz, but if the topaz or coundum is scratched then it is indeed a valuable diamond.

First answer by Theanswers. Last edit by Theanswers. Contributor trust: 45 [recommend contributor recommended]. Question popularity: 5 [recommend question].

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