1.The most common minerals within Earth are ________.
a. silicates

b. carbonates

c. oxides

d. hydroxides



2. The silica tetrahedron that forms the backbone of all the silicate minerals is composed of silicon and what other element?

a. magnesium

b. oxygen

c. iron

d. carbon



3. Which of the following is NOT a mineral?

a. quartz

b. diamond

c. petroleum (oil)

d. gold



4. The single property that can be used to identify any mineral is ________.

a. color

b. luster

c. cleavage

d. Multiple properties must be used to identify a min