Metamorphic
These metamorphic rocks display mineral grains lined up in parallel bands.
Foliated Rocks
These two processes follow deposition and burial in the formation of sedimentary rock.
Compaction and Cementation
The cooling of this liquid rock leads to the formation of igneous rocks.
Magma
The splitting of a mineral along smooth, flat surfaces.
Basic concept in geology that describes transitions through geologic time among the three main rock types.
The Rock Cycle
In contrast to regional metamorphism, this type of metamorphism changes the composition of rock through heat alone.
This sedimentary rock forms from the remains of organisms deposited in thick layers.
Organic Rock
Igneous rock that forms as magma cools underground.
Intrusive Rock
The colored mark left after scratching a mineral on an unglazed porcelain plate.
Streak
Structure of silicate minerals.
Tetrahedron
This form of metamophism occurs close to techtonic plate activity.
Regional Metamophism
These rocks are formed when rock fragments are squeezed together.
Clastic Rock
The speed at which crystals found in extrusive rocks are formed.
Quickly
The measure of how easily a mineral can be scratched.
Hardness
Texture of sedimentary rocks made from skeletal fossil fragments of once living marine or land organisms.
Bioclastic
Metamorphic rock can be formed from this/these types of origin rock.
Metamorphic, Sedimentary, and Igneous
The action of surface processes that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location.
Erosion
The texture of igneous rocks where magma cools slowly and mineral crystals are visable.
The way a mineral reflects light.
Luster
Texture of volcanic rocks that have lots of holes or cavities.
Vesicular
The rock formed under the highest rates of heat and pressure of the foliated rocks.
Gneiss
The disintegration of rocks and man-made materials caused by chemical reactions such as oxidization.
Chemical Weathering
These igneous rocks are generally lighter in color and less dense.
Felsic
The scale that measures mineral hardness is named after this mineralogist.
Friedrich Mohs
Silicate minerals contain silicon, metal, and this element.
Oxygen