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One student did an experiment with two unknown minerals, Mineral 1 and Mineral 2. The hardness scale shown below was used for the experiment. Mineral Talc Gypsum Calcite Fluorite Apatite Orthoclase Hardness 1 2 3 4 5 6 Any mineral on the hardness scale would scratch minerals below it on the scale. The student tested Mineral 1 and observed that it could scratch only two other minerals on the hardness scale. It was observed that Mineral 2 could scratch only four other minerals on the hardness scale. Which of these is a correct conclusion the student can make about Mineral 1 and Mineral 2? A) Mineral 1 can be used to scratch talc and Mineral 2 can be used to scratch orthoclase. B) Mineral 1 can be used to scratch orthoclase and Mineral 2 can be used to scratch talc. C) Mineral 1 can be used to scratch calcite and Mineral 2 can be used to scratch gypsum. D) Mineral 1 can be used to scratch gypsum and Mineral 2 can be used to scratch calcite.


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