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Mineral Strength and Measurement

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Questions and Answers

Which of the following best describes the tenacity of halite, calcite, and fluorite?

Elastic

Brittle (correct)

Sectile

Malleable

Which of the following minerals can be easily hammered into different forms?

Talc

Copper (correct)

Calcite

Gypsum

Which of the following minerals can be cut into thin sheets or sections?

Fluorite

Talc

Gypsum (correct)

Halite

Which mineral is described as elastic, meaning it reforms its original shape after a stress is released?

Mica Signup and view all the answers

Which of the following is NOT a property used to measure mineral strength?

Density Signup and view all the answers

What is the reason given for why a carbide-tipped blade can cut through steel without dulling?

Carbide is stronger than steel Signup and view all the answers

Which of the following statements about mica is FALSE?

Mica is the same as Formica Signup and view all the answers

What is the primary purpose of the Mohs Hardness Scale?

To rank the hardness of minerals relative to each other Signup and view all the answers

Which of the following statements about the Mohs Hardness Scale is true?

The scale ranks minerals from softest to hardest, but the differences in hardness are not uniform Signup and view all the answers

What is the primary reason for using carbide-tipped blades in construction materials?

Carbide is harder than steel, allowing it to cut through steel nails Signup and view all the answers

Which mineral property describes the tendency of a mineral to break along flat planes of weak bonding?

Cleavage Signup and view all the answers

Why is mica used to make durable washers?

Mica exhibits a high degree of cleavage, allowing it to form flat sheets while retaining its elastic property Signup and view all the answers

Which of the following minerals exhibits an earthy fracture?

Limonite Signup and view all the answers

What type of fracture does quartz exhibit?

Conchoidal fracture Signup and view all the answers

Which of the following statements about cleavage and fracture is true?

Only some minerals exhibit cleavage, but all minerals exhibit fracture Signup and view all the answers