Minerals and Rocks 3rd 9 weeks

Choose 2!

A mineral is a naturally occurring, inorganic solid that has ...

• a crystal structure and

• definite chemical composition

• sequence and structure to develop

Choose 3!

Name 5 characteristics of minerals:

• Naturally occurring & crystal structure

• inorganic & solid

• forming sediment

• definite chemical composition.

How do we identify minerals?

• Number of edges that are pointed

• By the location where they are found

• Color, Streak, Luster, Density Hardness

What is the streak of a mineral?

• the way that it breaks apart

• the reflection in a mirror

• the color of its powder

The streak and the color of a mineral are the same.

• True

• False

Luster- how light is reflected from a mineral’s surface.

• True

• False

Minerals containing metals are...

• dull

• shiny

• sharp

Density is the mass in a given space or mass per unit volume.

Density _______ regardless of the size of the mineral.

• varies

• changes

• is the same

The best clue to help identify minerals is .....

• hardness

• streak

• luster

What scale is used to rank hardness?

• Elliptical Scale

• Moh's hardness scale

• Inertia Scale