Rocks and Minerals
Terms in this set (10)
A solid inorganic substance of natural occurrence.
A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together. Often form horizontal layers.
a type of rock that forms from the cooling of molten rock at or below the surface
A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.
The way a mineral reflects light
the color of a mineral's powder
Mohs hardness scale
A scale ranking ten minerals from softest to hardest; used in testing the hardness of minerals
the amount of force exerted per unit area of a surface
intrusive igneous rock
rock formed from the cooling and solidification of magma beneath Earth's surface. Forms large crystals.
extrusive igneous rock
rock that forms from the cooling and solidification of lava at Earth's surface
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