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Chemistry, 22.06.2019 08:40
Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.
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Chemistry, 22.06.2019 13:00
In what environment would mineral formation caused by high pressures and high temperatures most likely occur?
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I was bored who wants talking me...
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