Science Chapter 3 Lesson 2

Front

What is cleavage in minerals?

Back

Cleavage forms when a mineral breaks along smooth, flat surfaces.

Front

Does Talc scratch Fluorite?

Back

False, Talc does not scratch Fluorite.

Front

Is color the best way to identify a mineral?

Back

False, color is not the best way to identify a mineral.

Front

What is fracture in minerals?

Back

Fracture forms when a mineral breaks along rough, uneven surfaces.

Front

What is luster in minerals?

Back

Luster is the way in which a mineral's surface reflects or absorbs light.

Front

What is a mineral?

Back

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

Front

What is the Mohs scale?

Back

The Mohs scale is a scale used to measure the hardness of minerals, ranging from 1 (talc) to 10 (diamond).

Front

What does it mean if a mineral is opaque?

Back

If a mineral is opaque, it means that light cannot pass through it.

Front

What is the difference between a mineral and a rock?

Back

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

Front

What is the definition of a gemstone?

Back

A gemstone is a precious or semi-precious mineral that is cut and polished for use in jewelry.