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Rock cycle

Igneous rock

Crystal

Cleavage

Intrusive rock

Mineral

Ore

Sedimentary rock

Hardness

Inorganic

Metamorphic rock

Magma

Streak

Fracture

Cementation

Petrologist

Sediment

Compaction

Extrusive rock

Gem

Breaking of a mineral along rough, jaggered surfaces

Rock formed by the cooling and hardening of magma

Breaking of mineral along smooth, definite surfaces

Igneous rock formed from lava at the earth's surface

Small pieces of rock, shells, or remains of plants and animals that have been carried along and deposited by wind, water and ice.

Naturally occuring substance formed in the earth

Composed of material that is not and never was living

Ability of a mineral to resist being scratched

Process by which layers of sediments are pressed together to form sedimentary rocks.

Solid formed from a repeating pattern of atoms

Scientist who studies rocks, and their mineral composition

Process by which sediments are cemented together by minerals dissolved in water to form sedimentary rocks

Igneous rock formed deep within the earth,

Rock deposit that contains minerals that can be mined as a profit

Rock formed when sedimentary or igneous rocks are changed due to heat, pressure, or chemical reactons.

Continuos changing of rock from one type to another

Color of the powder left behind when a mineral is rubbed against a hard rough surface

Hot liquid rock beneath the earth's surface

Mineral that is rare beautiful and durable

Rocks fromed from sediments that have been pressed and cemented into rock