Mineral Practice

Which two properties are most useful in distinguishing between galena and halite?

• cleavage and color

• luster and color

• hardness and streak

• streak and cleavage

Which physical property of the mineral is most easily seen in the photograph?

• fracture

• hardness

• streak

• cleavage

__________ is if a mineral breaks apart in a jagged or rough layer.

• cleavage
• luster
• fracture

Which mineral property is being shown here?

• luster
• hardness
• cleavage
• streak

What is the scale that is used to indicate hardness of a mineral?

• Red Scale
• Moh's scale
• Einstein's Scale
• Fracture Scale

Which minerals would all scratch apatite?

• diamond, topaz, quartz
• quartz, calcite, gypsum
• fluorite, talc, calcite
• diamond, fluorite, corundum

The tendency of a mineral to split when struck along specific planes of the crystal structure is __________.

• cleavage

• streak

• fracture

The three most abundant elements in Earth’s crust are oxygen, silicon, and _________.

• aluminum

• iron

• nitrogen

A __________ is a naturally occurring, inorganic solid substance with a fixed chemical composition and crystal structure.

• rock

• mineral

• compound

This means that atoms in a mineral line up in a pattern that repeats over and over again

• chemical composition

• crystal structure

• fracture

• solid