minerals of Earth's crust

solid materials of Earth's crust

• minerals

• elements

Minerals are made of

• compounds

• crust

• elements

• luster

two or more elements joined together

• minerals

• chemical compound

• crystals

• luster

minerals form geometric shapes called

• elements

• crystals

• chemical compounds

• luster

color should be observed...

• on a black surface

• on a dirty surface

• on a white surface

• on a fresh surface

the way light bounces off of minerals

• luster

• crystal

• color

• hardness

the color of the powder left when a mineral is rubbed against a hard surface is

• opacity

• cleavage

• hardness

• streak

measure of how well a mineral resists scratching

• cleavage

• hardness

• flacture

• streak

if a mineral breaks along flat surfaces

• flacture

• hardness

• cleavage

• streak

minerals that have flacture...

• do not break smoothly

• break along flat surfaces

• break smoothly

• resist scratching