Quiz #3- Minerals and Rocks- 20 to 29 Flashcards
Intrusive
type of igneous rock that forms when magma cools under the earth’s surface.
Extrusive
types of igneous rock that forms from lava that cooled above the earth’s surface.
Metamorphic Rock
Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot mineral-rich fluids or, more commonly, some combination of these factors.
Foliated
type of metamorphic rock created when mineral grains flatten and lineup into parallel bands.
Non- foliated
type of metamorphic rock created when mineral grains change, grow and rearrange, but do not form bands.
Sediments
pieces of broken rock or remains or those rocks.
Sedimentary Rock
rock formed of mechanical, chemical, or organic sediment.
Clastic
made from the broken parts of other rocks.
Chemical
forms when minerals are precipitated from a solution or are left behind when a solution evaporates.
Organic
forms from the remains of once living things.