Geology Ch 3

The structural unit of sulfates is SiO4

False

Rock solidified after being molten is called

Igneous

Which of the following is not technically a physical property that may be used to identify a mineral

weight

Polymorphs are minerals with the same structure but a different composition

False

All of the following are important in determining the physical properties of a mineral except:

Temperature at the surface of the earth

A mineral is defined as:

any naturally occurring inorganic solid consisting of chemical elements in specific proportions whose atoms are arranged in systematic internal pattern

If a mineral exhibits cleavage, it

breaks consistently along distinct planes

if a mineral breaks along a zone of weak chemical bonds in the crystal structure, it exibits what physical property

clevage

A number which is the ratio of the weight of a mineral to an equal volume of water is called

density

The weight of a mineral compared to the weight of an equal volume of water is its

specific gravity

Which mineral is not found on Mohs hardness scale

Biotite

Which of the following statements about mineral identification is NOT true

Streak is determined by observing weather there are scratches or streaks on the sample