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14 Cards in this Set

  • Front
  • Back
what is physical geology
study of earth materials and processes
what is historical geology
origin of the earth and its development through time
scientific law
a generalization about the behavior of nature which has no known deviation after numerous observations and experiments
observation
attempt to observe data to address the question
theory
best current explanation and can be replaced or disposed by a better or revised theory
principle of uniformity
the present is key to the past
what is a mineral
naturally occurring
inorganic
solid
ordered internal structure
definite chemical composition
rock
a solid aggregate or mass of minerals
what are the physical properties of minerals
luster
color
streak
hardness
cleavage
fracture
specific gravity
taste, feel, flexibility, magnetism, effervescence, double refraction
luster
appearrance of a mineral in reflected light

nonmetallic or metallic
cleavage
tendency to break along planes of weak bonding
conchoidal fracture
no cleavage
elements
basic building blocks of minerals
100 known
composed of masses of the same atoms
atoms
smallest particle of matter
electrically charged