Minerals and Rocks Quiz

An example of a mineral made up of a pure element is

• coal

• copper

• quartz

• glass

Which term is used to describe how light is reflected from a mineral’s surface?

• color

• luster

• cleavage

• streak

What is the hardest known mineral?

• talc

• quartz

• diamond

• gold

Halite is a mineral formed by

• crystallization of hot water solutions on the ocean floor.

• cooling of magma.

• evaporation.

• cooling of lava.

When all the grains in a rock are large and easy to see, the rock is described as

• extrusive

• fine grained

• coarse grained

• nonbanded

Which igneous rock has large crystals surrounded by smaller crystals?

• pegmatite

• porphyry

• rhyolite

• granite

An igneous rock commonly used as building material is

• sandstone

• marble

• slate

• granite

The process by which sediment settles out of the water or wind carrying it is

• compaction

• cementation

• deposition

• erosion

A sedimentary rock made up of rock fragments with rounded edges is called

• shale

• sandstone

• conglomerate

• breccia

Heat and pressure deep beneath Earth’s surface can change any rock into

• chemical rock

• gemstones

• metamorphic rock

• sedimentary rock