• Question: what is the hardest rock to cut?

    Asked by free43egg to Jess on 9 Nov 2019. This question was also asked by draw43ham, quiz43tea.
    • Photo: Jessica Franklin

      Jessica Franklin answered on 9 Nov 2019:

      Well the hardest mineral to cut is a diamond which is formed deep under ground. I think the hardest rock to cut might be a granite or a quartzite. These rocks have lots of quartz crystals in them which can be very hard to cut!

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