Minerals Quiz

Which statement about minerals is NOT true?

• They have a crystalline form.

• They are made of inorganic matter.

• They form only from hot or cool solutions.

____ are the main rock-forming minerals.

• Sulfides

• Silicates

• Carbonates

What determines a mineral’s luster?

• its streak

• the shape of its crystals

• its chemical composition

Which statement is true?

• Light-colored minerals always have cleavage.

• Minerals that have high densities always have fracture.

• Minerals that break along smooth surfaces have cleavage.

____ commonly crystallizes as surface water evaporates.

• Gold

• Halite

• Quartz

• Garnet

Why is talc NOT considered to be a gemstone?

• It is very soft.

• It has a white streak.

• It can be only white or light green.

A(n) __________ is a mineral that can be mined at a profit.

A mineral that breaks into uneven pieces exhibits __________.

The mass and volume of a mineral determine its __________.

__________ and __________ are directly related to properties of light.