Geology Foundations

Which is NOT a requirement for a mineral?

• Solid

• Organic

• Naturally Occurring

• Crystalline Structure

The difference between a rock and a mineral is that...

• Rocks are made of one or more minerals and minerals are pure

• Rocks are solid while minerals are can be any state of matter

• Rocks are dull while minerals are metallic

• Rocks are brown while minerals can be many different colors

What are the 4 properties used to identify a mineral? Check all that apply.

• Color

• Texture

• Luster

• Hardness

• Streak

Which mineral test uses a plate where the mineral is scraped across to produce a streak?

• Color

• Luster

• Hardness

• Streak

Which mineral test uses a flashlight to test how much light is reflected off of a mineral?

• Color

• Luster

• Hardness

• Streak

Which mineral test uses different materials with a known hardness to scratch the surface of the mineral?

• Color

• Luster

• Hardness

• Streak

Which mineral test uses Mohs scale?

• Color

• Luster

• Hardness

• Streak

A mineral is not scratched with an object that has a hardness of 6, but is scratched with an object that has a hardness of 8. What is the most likely hardness of the mineral?

• 2

• 4

• 6

• 7

Use Mohs Scale to determine the hardness of Quartz.

• 3

• 5

• 7

• 10

Hematite is shiny and looks like it has small pieces of metal on the outside of it. What is the word to describe the luster of hematite?

• Nonmetallic

• Dull

• Metallic

• Glassy