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32 Cards in this Set

  • Front
  • Back
allotrophs
different forms of the same element
compoud
2 or more elements chemically joined together
a mineral canbe...
an element or a compound
what are ways to identify minerals?
luster, cleavage, streak test
luster
metallic or nonmetallic
cleavage
the way a mineral breaks
if a rock breaks evenly it has..
cleavage
if a rock breaks unevenly it has...
fracture
what is thebest fest for a mineral?
hardness
what is the softest mineral
talc
what is the hardest mineral
diamond
is a mineral organic or inorganic
inorganic
how are the atoms of minerals arranged
in an orderly pattern
what affects the structre of a mineral?
temp
what shape is a silicon-oxygen structual unit in?
a pyramid
what factor causes flat surgaces to be produced when some minerals are broken?
the arrangement of the atoms of the minerals
how will minerals differ if they have the same units arranged in different patterns?
one mineral will have some physical properties different from the other
why do diamond and graphite have different physical properties, even though they are composed entirely of the element carvon?
the mienrals have different arrangement sof carbon atoms
what causes the characteristic crystal shape and cleavage breaking along flat surfaces of the mineral halite?
the internal arrangemnet of the atoms in halite
two mineral samples have different physical properties, but each contains the silicate tetrahedrons as its basic structural unit. whhat statemnet about the two mineral samples must be true?
they contain silicon and oxygen
the hardness of a mineral is due to
the internal arrangement of its atoms
why do igneous rocks have different textures?
bc of where they form
how do igneous rocks form?
from solidification of liquid magma or lava
what does the cooling rate of magma dtermine?
the crystal size of the igenous rock
intrusive
large crystals
how do you get intrusive rocks?
if the magma cools deep underground
extrusive
small crystals
how do you get extrusive rocks?
if the rock forms on the surface from lava
what is the cooling rate for extrusive?
fast
what is teh cooling rate for intrusive?
slow
glassy
if the laval cools super fast the rock will have no crystals
vasicular
igenous rocks w/ holes