gmo test 2
t/f: talc can scratch diamond
false
oxygen comprises about _____ percent by weight if earth's continental crust
47
t/f: the elements silicon and carbon comprise nearly 92% of the earth's continental crust
false
t/f: the mineral calcite is a sulfide mineral
false
t/f: vitreous (glassy), pearly, and silky are types of metallic lusters
false
t/f: corundum can scratch diamond
false
t/f: luster is the external expression of a mineral's internal orderly arrangement of atoms
false
which of the following elements is not part of the continental crust -potassium -carbon -iron -calcium -magnesium -aluminum
carbon
the tendency of a mineral to break along planes of weak bonding is called
cleavage
minerals that break into smooth curved surfaces, like those seen in broken glass, have a unique type of fracture, called...
conchoidal fractures
which is the hardest of the following minerals -corundum -talc -quartz -halite
corundum
t/f: nearly 4000 minerals have been named
false
t/f: quartz is softer than calcite
false
t/f: quartz is the mineral from which plaster and other similar building materials are composed
false
t/f: color is one of the best diagnostic properties for mineral identification
false
which is a another term for crystal shape
habit
which mineral has a salty taste -calcite -halite -diamond -gold
halite
the property that is a measure of the resistance of a mineral to abrasion or scratching:
hardness
which one of the following is not one of the eight most abundant elements in earth's continental crust -oxygen -iron -aluminum -calcium -hydrogen
hydrogen
the scale used by geologists to measure the hardness of a mineral is called the ______ scale
mohs
which of the subatomic particles has no charge
neutron
a glassy look to a mineral means its luster is
nonmetallic
oil, coal, natural gas, and most metals are considered to be:
nonrenewable resources
which of the following statements concerning minerals is not true -naturally occurring -solid -organic -orderly crystalline structure -formed of atoms
organic
which of the subatomic particles has a positive charge
proton
the property that involves the color of a mineral in its powdered for is:
streak
which of the following minerals is the softest -corundum -talc -quartz -halite
talc
the basic building block of the silicate minerals is the silicon-oxygen _________
tetrahedron
t/f: a mineral is a naturally occurring inorganic solid that possesses an orderly crystalline structure
true
t/f: an ore deposit is a natural occurring concentration of one or more metallic minerals that can be extracted economically
true
t/f: cleavage is defined by the number if directions exhibited and the angles at which they meet
true
t/f: non-silicate minerals make up about 8% of the continental crust
true
t/f: quartz can scratch talc
true
t/f: the most common mineral group is the silicate mineral group
true
t/f: only two elements compose the bulk of the rock-forming minerals
true (silicon and oxygen)