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15
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A mineral's surface LUSTER can become dull if it has been exposed to water.
an imperfection or blemish
the way in which light is reflected from its surface
consisting of rays from the invisible spectrum
the amount of mass in a given volume of a substance
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15
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What is the Mohs scale based on?
the fact that a harder material will scratch a softer one
the atomic arrangement of atoms
mineral's color and luster will vary with each sample
the chemical properties of metals
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15
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What causes two minerals of the same chemical composition to have different crystal structures?
temperature
arrangement of atoms
age
location of growth
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seesaw
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gift
Win 10 points!
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fairy
Take points!
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20
25
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baam
Lose 20 points!
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baam
Lose 10 points!
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gold
Win 50 points!
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gift
Win 20 points!
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banana
Go to last place!
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15
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How are carbonate materials different from other materials?
they are magnetic
they react to acid
they react to radioactivity
they are fluorescent
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15
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There was FROST on the grass this morning.
a usually light-colored, coarse-grained igneous rock
white covering of ice particles
made liquid by heat
a machine or tool used for a particular purpose
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15
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A dull hematite and a shiny hematite have the same STREAK because they are the same mineral.
identifying characteristic features of a mineral
the amount of mass in a given volume of the substance
the color of powder left when the mineral is scraped
the tendency of a mineral to break along flat surfaces
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15
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How do scientists classify minerals into groups?
by compostion
by color
byshape
by age
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15
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Graphite has CLEAVAGE because the bonds between the layers break easily.
identifying characteristic features of a mineral
the powder left behind when a mineral is scrapped
the tendency of a mineral to break along flat surfaces
the resistance of a mineral to being scratched
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15
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In the Mohs scale, diamond has a HARDNESS value of 10.
the tendency of a mineral to break along flat surfaces
the way in which light reflects from its surface
identifying characteristic features of a mineral
the resistance of a mineral to being scratched
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15
×
Which of the following elements is most commonly found in the Earth's crust?
silicon
oxygen
iron
calcium
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eraser
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seesaw
Swap points!
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shark
Other team loses 10 points!
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thief
Give points!
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25
15
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A small amount of gold is heavier than a large amount of pyrite. What can be concluded about pyrite and gold?
They have identical densities
They have different lusters
They have similar lusters
They have different densities
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15
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UNGLAZED tiles are cheap, but they are not attractive.
the tendency of a mineral to break into irregular pieces
the resistance of a mineral being scratched
not having a shiny coating
identifying charateristic features of a mineral
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baam
Lose 15 points!
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gift
Win 15 points!
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gift
Win 25 points!
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lifesaver
Give 20 points!
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