Rock Vocabulary

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These rocks have mineral grains that are lined up in rows, bands, or layers.

These rocks contain a mixture of coarse and fine grains.

These type of rocks form when sediments are deposited, compressed, and cemented together.

Material made from loose rock fragments, minerals and organic material

This type of rock is formed from pre-existing rocks that are altered by heat and pressure.

This rock's name means fire.

This type of rock has mineral grains that aren't lined up.

Rocks that have minerals that are too small to be seen are called