03 Mineralogy Quiz

On Mohs' hardness scale, which of the following minerals is harder than quartz?

• talc

• apatite

• gypsum

• topaz

A mineral's streak

• is more reliable than color in identifying a mineral.

• reveals the mineral's specific gravity.

• is the same as a luster test.

• reveals the mineral's crystal structure.

Which of the following terms is NOT used to describe a mineral's luster?

• pearly

• waxy

• dull

• hexagonal

Which of the following is considered a special property that applies to only a few minerals?

• color

• luster

• streak

• magnetism

Which of the following physical properties can be expressed in numbers?

• luster

• hardness

• color

• reaction to acid

Which of the following minerals would scratch fluorite?

• talc

• quartz

• gypsum

• calcite

If the atoms of a substance are arranged in a specific, repetitive pattern, the substance is

• a compound.

• a colloid.

• crystalline.

• easily scratched.

The mineral calcite, CaCO3, is an example of a

• carbonate.

• silicate.

• sulfate.

• halide.

The nonsilicate minerals

• do not contain oxygen.

• are all rare substances.

• all display good cleavage.

• include native elements.

In addition to reclamation, a good way to reduce the environmental effects of mining is to

• recycle materials.

• dig deeper mines.

• use more metals.

• flush mines with water.