naturally occurring inorganic solid with a specific chemical composition and a definite crystalline structure
mineral
solid where atoms are arranged in repeating geometric patterns
crystal
rocks made from lava and magma
igneous
rocks made from fine grains in layers being pressed together
sedimentary
rocks made from heat and pressure
metamorphic
density in relation to rocks
specific gravity
when there is a clean break in a rock
cleave
molten rock above ground
lava
the breaking down of a rock into grains and sediments
weathering
metamorphic rocks that form in layers
foliated
how light reacts to a rock
luster
ability of a rock to leave a mark when dragged along a surface
streak
rocks made from molten rock above ground
the removal and transport of sediments from its source
erosion
the cycle that shows any rock can become any other type of rock
rock cycle
how difficult it is to scratch a rock
hardness
when there is a jagged break in a rock
fracture
molten rock below ground
magma
when material fills in the gaps between grains to glue them together
cementation
metamorphic rock that does NOT form in layers
nonfoliated
the scale that measures how hard an object is to scratch
mohs hardness scale
geometric shape of four triangles resembling a pyramid
tetrahedron
rocks made from molten rock below ground
intrusive
the taller the pile of sediment, the more pressure and temperature is applied to the bottom of the pile
lithification
hydrothermal metamorphism