Rocks & Minerals

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a type of rock that forms when lava cools and hardens

term used to describe how shiny or dull a mineral is

a type of rock formed by the combination of heat and pressure

this term describes a mineral's ability to resist being scratched

tiny particles of rock that have been broken off of bigger rocks by weathering

the process that moves sediment from one place to another

the natural process that breaks rocks down into sediment

the entire process by which rocks are broken down and re-formed