Rock and Mineral Test

Which material is made mostly of the mineral quartz?

• sulfuric acid

• pencil lead

• plaster of paris

• window glass

Which mineral can be found in all samples of rhyolite and andesite?

• pyroxene

• quartz

• biotite

• potassium feldspar

Which mineral precipitates from oceans and forms rock salt?

• halite

• quartz

• olivine

• fluorite

Which three minerals are most likely used in the construction of a house?

• graphite, pyrite, and halite

• garnet, galena, and sulfur

• talc, amphibole, and fluorite

• selenite gypsum, dolomite, and muscovite mica

The data table below gives characteristics of the gemstone peridot.

Peridot is a form of the mineral

• pyrite

• pyroxene

• olivine

• garnet

Which characteristic do samples of the mineral pyroxene normally exhibit?

• hardness of 5 to 6

• cleaves at 56° and 124°

• bubbling in hydrochloric acid

• yellow to amber color

Which mineral will scratch fluorite, galena, and pyroxene?

• graphite

• calcite

• olivine

• dolomite

What is the origin of fine-grained igneous rock?

• lava that cooled slowly on Earth's surface

• lava that cooled quickly on Earth's surface

• silt that settled slowly in ocean water

• silt that settled quickly in ocean water

The physical properties of minerals result from their

• density and color

• texture and color of streak

• type of cleavage and hardness

• internal arrangement of atoms

What is the texture of inorganic land-derived sedimentary rocks?

• bioclastic

• crystalline

• clastic

• vesicular