OpenStudy (anonymous):
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
OpenStudy (anonymous):
Any mineral on the hardness scale would scratch minerals below it on the scale. The student tested Mineral 1 and observed that it scratched all other minerals on the hardness scale except orthoclase. When Mineral 2 was tested against fluorite it was observed that neither mineral scratched each other. Which of these is a correct conclusion the student can make about Mineral 1 and Mineral 2? Mineral 2 can be used to scratch apatite and calcite. Mineral 1 can be used to scratch apatite and calcite. Mineral 2 can be used to scratch calcite and orthoclase. Mineral 1 can be used to scratch calcite and orthoclase.
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