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Holt Earth Science CH 5
Minerals and Crystal studyguide
23
Geology
11th Grade
01/29/2013

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Term
what are the two main groups of minerals?
Definition
silicate and nonsilicate
Term
which are nonsilicate crystalline structures?
Definition
cubes, hexagonal prisms, irregular masses
Term
a double-chain silicate is
Definition
twobonded single-chains
Term
what two elements must be present in silicate?
Definition
silicon and oxygen
Term
which of the following groupings lists only minerals?
Definition
fluorite, feldspar, copper
Term
whichof the follow ing are chatoyancy and asterism associated with?
Definition
cat's cradle and six-sided star
Term
a minerial is desribed as fluorescent when it..
Definition
glows under ultraviolet light..
Term
what mineral property involves iron?
Definition
magnetism
Term
because many minerals are similar in color and certain ekements may change the color, color..
Definition
is not a good identifier
Term
unstable atommc nuclei decay over time into stable nuclei, causing a mmineral to be...
Definition
radioactive...
Term
what is chatoyancy?
Definition
mineral shows a cat's-eye effect
Term
a phosphorescent minlral glows...
Definition
after an ultralet light is turned off..
Term
Double-chain silicates are formd when
Definition
two single-chains of tetraedra bond to each other..
Term
cubes, hexagonal prisms, and irregular masses are examples of...
Definition
three common momsilicate crystaalline structures.
Term
which of the follwing is NOT one of the four criteria for determimging whether or not a substance is a...
Definition
it has a shiny surface
Term
what is radioactiviy?
Definition
UNSTABLE ATOMIC decay over time, releasing particles and energy....
Term
the color of a mineral in powdered form is called the minerral's..
Definition
streak.
Term
a mineral is a natural solid that usually is..
Definition
inorganic,with characteristic physical properties..
Term
single-chain silicates are silicate crystalline structure in which tetrahedra frorm a
Definition
chain by sharing oxygen atoms..
Term
the hardest mineral on the mohs hardness scale is...
Definition
diamond..
Term
density is the ratio of..
Definition
the mass of a substance to the volume of the substance..
Term
double-chain silicates form when..
Definition
two single-chains of tetrahedra bond to each oter..
Term
cleavage is the tendency of a mineral to..
Definition
split along specific planes, forming flat surfaces..
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