Test 3 Review 12/17

Which element, found in both biotite mica and muscovite mica, makes up the greatest percent by volume of Earth's crust?

• nitrogen

• oxygen

• potassium

• silicon

Which material is made mostly of the mineral quartz?

• sulfuric acid

• pencil lead

• plaster of paris

• window glass

Which rock would be the best source of the mineral garnet?

• basalt

• limestone

• schist

• slate

Which mineral can be found in granite, andesite, gneiss, and hornfels?

• quartz

• pyroxene

• olivine

• biotite mica

Igneous, sedimentary, and metamorphic rocks are usually composed of

• intergrown crystals

• fossils

• minerals

• sediments

What do most igneous, sedimentary, and metamorphic rocks have in common?

• They are formed from molten material.

• They are produced by heat and pressure.

• They are composed of minerals.

• They exhibit crystals, banding, and distinct layers.

In which group are all the earth materials classified as minerals?

• feldspar, quartz, and olivine

• granite, rhyolite, and basalt

• cobbles, pebbles, and silt

• conglomerate, sandstone, and shale

Of the Earth's more than 2,000 identified minerals, only a small number are commonly found in rocks. This fact indicates that most

• minerals weather before they can be identified

• minerals have properties that are difficult to identify

• rocks have a number of minerals in common

• exposed surface rocks are igneous

Which physical property can be observed in this photograph?

• cleavage

• hardness

• magnetism

• streak

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

• cleavage and color

• luster and color

• hardness and streak

• streak and cleavage