Minerals

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

• mineral

• rock

• crystal

• solution

How do minerals form from magma?

• magma heats up and forms crystals

• magma cools down and forms crystals

• liquids become saturated and form crystals

• liquids become unsaturated and form crystals

How do minerals form from solutions?

• magma heats up and forms crystals

• magma cools down and forms crystals

• liquids become saturated and form crystals

• liquids become unsaturated and form crystals

Of the 3000 minerals that occur in Earth's crust, only this many are common.

• 5

• 30

• 300

• 3000

The way a mineral reflects light is known as

• streak

• luster

• crystal form

• fracture

the two main ways we classify mineral luster is

• metallic and nonmetallic

• earthy and pearly

• fracture and cleavage

• shiny and not shiny

The hardest known mineral is

• diamond

• talc

• glass

• quartz

A mineral such as mica that breaks into smooth planes exhibits

• fracture

• cleavage

The streak of nonmetallic minerals is usually

• white

• red

• yellow

• gold

Which of the following is NOT a special property of minerals?

• magnetism

• iridescence

• double refraction

• flammability