Rocks and Minerals Earth Make Up test

Which medium-grain-sized metamorphic rock is composed mostly of the same mineral as the sedimentary rock limestone?

• Gneiss

• Marble

• Schist

• Quartzite

Which rock was subjected to intense heat and pressure but did not solidify from magma?

• sandstone

• schist

• gabbro

• rhyolite

Which lettered box could represent the rock conglomerate?

• E

• G

• C

• D

Which rock could have formed from the forces represented in this picture?

• Gneiss

• Hornfels

• Shale

• Basalt

The fine-grained, dark-colored, igneous rock in this picture is most likely

• rhyolite

• diorite

• basalt

• gabbro

This diagram indicates physical changes that accompany the conversion of shale to gneiss.

Which geologic process is occurring to cause this conversion?

• sedimentary layering

• metamorphism

• intrusion of magma

• weathering

This photograph shows rock composed primarily of visible crystals of mica, quartz, and feldspar. Based on the composition and foliated texture, this rock can best be identified as

• marble

• schist

• slate

• anthracite coal

Which rock was organically formed and sometimes contains fossilized plant impressions?

• Rock gypsum

• Phyllite

• Breccia

• Coal

Which process could lead directly to the formation of pumice rock?

• precipitation of minerals from evaporating seawater

• metamorphism of unmelted rock material

• deposition of quartz sand

• explosive eruption of lava from a volcano

Rocks are classified as igneous, sedimentary, or metamorphic based primarily on their

• texture

• crystal or grain size

• method of formation

• mineral composition