Geology & Engineering Review STT

Front

How do Al³⁺ and O^2- bond together?

Back

They bond to form Al₂O₃.

Front

What is a naturally occurring, solid with a crystal structure and a definite chemical composition?

Back

A mineral.

Front

What is the hardness of diamond on Mohs Hardness Scale?

Back

10.

Front

Can a penny scratch fluorite?

Back

No.

Front

What is the color of a mineral in powder form called?

Back

Streak.

Front

What is the definition of a mineral?

Back

A naturally occurring, inorganic solid with a definite chemical composition and a crystalline structure.

Front

What is Mohs Hardness Scale used for?

Back

To measure the hardness of minerals.

Front

What is the difference between a rock and a mineral?

Back

A rock is a solid aggregate of one or more minerals, while a mineral is a single substance.

Front

What is luster in terms of minerals?

Back

Luster refers to the way light interacts with the surface of a mineral.

Front

What is specific gravity in geology?

Back

Specific gravity is the ratio of the density of a mineral to the density of water.