minerals
naturally occuring, homogenous solid substances that are inorganic
Luster
the way light is reflected from the freshly cut surface of a mineral
streak
the powdered form of the mineral
crystal
a regularly shaped solid formed by an ordered pattern of atoms
Cleavage
how a mineral breaks (good cleavage=clean sheets and vice versa)
Igneous Rocks
formed from cooled lava flow
Sedimentary
formed by buildup and compation of sediment due to erosion and weathering
Metamorphic
formed deep in earth's crust by intense heat and pressure
Intrusive
a rock with large crystals (inside the earth)
Extrusive
a rock with little to no crystals (made at earth's crust)
felsic
light in color
mafic
dark in color
Vesicular
containing many holes created by expanding gas as magna rises to the surface
Foliation
alignment of crystals
banding
separate light and dark layers on a metamorphic rock
rock cycle
a model of natural changes in rocks and rock material
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