Chemistry, 26.09.2019 16:10 chloerodgers56

Which substances are harder than apatite, but softer than corundum?

a. fluorite and quartz

b. topaz and quartz

c. diamond and quartz

d. talc and gypsum

Answers: 1

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Which substances are harder than apatite, but softer than corundum?

a. fluorite and qua...