The new DEVICE will be used to purify water.
the amount of space an object takes up
a machine or tool used for a particular purpose
a part considered in relation to the whole
made liquid by heat
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 densities
They have similar lusters
They have different lusters
Which of the following is NOT a characteristic of a mineral?
forms in nature
has a crystal structure
has a definite chemical makeup
can be solid, liquid, or gas
A mineral is a substance that has a DEFINITE chemical makeup.
made liquid by heat
the amount of space an object takes up
not likely to change
a usually light-colored, coarse-grained igneous rock
We returned the diamond ring because it had a DEFECT.
an imperfection or blemish
the way in which light reflects from its surface
the tendency of a mineral to break into two irregular pieces
consisting of rays from the invisible part of the spectrum
What percentage of the rocks in Earth's crust is made up of silicates?
10%
70%
90%
30%
What is usually joined with oxygen to create oxide?
a crystal
a liquid
a gas
a metal
When I dropped my quartz ring. it FRACTURED into many curved and irregular shapes.
the powder left behind by a mineral when it is scrapped
the resistance of a mineral from being scratched
the tendency of a mineral to break into irregular pieces
not having a shiny coating
A pea has a smaller VOLUME than a cherry.
white covering of ice particles
the amount of space an object takes up
a part considered in relation to the whole
made liquid by heat
How can two minerals of different colors be identified as the same mineral?
by comparing their cleavage
by comparing their luster
by comparing their streak
by comparing their shape
Which mineral is common in seashells?
carbon
quartz
calcite
tin
Minerals in GRANITE develope when molten rock cools.
made liquid by heat
a machine or tool used for a particular purpose
white covering of ice particles
a usually light-colored, course-grained igneous rock
There was FROST on the grass this morning.
white covering of ice particles
a usually light-colored, coarse-grained igneous rock
a machine or tool used for a particular purpose
made liquid by heat
Which of the two is most likely to break into smooth, flat surfaces?
graphite
neither
diamond
both
How do scientists classify minerals into groups?
byshape
by color
by age
by compostion
Which of the following is true of a mineral found in both China and Spain?
Both have the same chemical makeup
The mineral in China only has materials native to China
The mineral in Spain is not as strong as the one in China
The mineral in China is darker than the one in Spain
What type of break is it when a mineral breaks along flat surfaces?
cleavage
tilted blocks
fracture
layers
It is important to use sunscreen to protect ourselves from the ULTRAVIOLET rays
the tendency of a mineral to break into irregular pieces
not having a shiny coating
an imperfection or blemish
consisting of rays from the invisible part of the spectrum
What causes two minerals of the same chemical composition to have different crystal structures?
temperature
arrangement of atoms
age
location of growth
What is it called when a mineral breaks into irregular pieces?
luster
streak
cleavage
fracture
In the Mohs scale, diamond has a HARDNESS value of 10.
identifying characteristic features of a mineral
the tendency of a mineral to break along flat surfaces
the way in which light reflects from its surface
the resistance of a mineral to being scratched
Why is a perfect crystal rare?
atoms of crystals break down once exposed to sunlight
natural elements erode crystal structures
Large, open, uninhabited spaces are rare in Earth's crust
crystals always experience irregularities at a certain age
A mineral's surface LUSTER can become dull if it has been exposed to water.
consisting of rays from the invisible spectrum
the amount of mass in a given volume of a substance
an imperfection or blemish
the way in which light is reflected from its surface
What do all silicates contain?
water and copper
mica and water
silicon and quartz
oxygen and silicon
Graphite has CLEAVAGE because the bonds between the layers break easily.
the resistance of a mineral to being scratched
the powder left behind when a mineral is scrapped
identifying characteristic features of a mineral
the tendency of a mineral to break along flat surfaces
How are carbonate materials different from other materials?
they react to acid
they are magnetic
they react to radioactivity
they are fluorescent
Which of the following is the least reliable clue to determine a mineral's identity?
its luster
its density
its color
its hardness
MINERALS are formed by natural processes.
a substance that forms in nature, solid, definite makeup
the amount of space an object takes up
a part considered in relation to a whole
a machine or tool used for a particular purpose
Which of the two has a stronger crystal structure bond?
diamond
neither
graphite
both
UNGLAZED tiles are cheap, but they are not attractive.
not having a shiny coating
identifying charateristic features of a mineral
the tendency of a mineral to break into irregular pieces
the resistance of a mineral being scratched
Which of the following elements is most commonly found in the Earth's crust?
calcium
iron
silicon
oxygen
Color is one of the PROPERTIES used to identify minerals.
not having a shiny coat
identifying characteristic features of amineral
the amount of mass in a given volume of a substance
the tendency of a mineral to break along a flat surface
What is the difference between talc and diamond in terms of hardness?
Talc is the hardest mineral; diamond is the softest
Talc is the softest, value of 1; diamond has a value of 4
Talc is the softest mineral; diamond is the hardest
Talc is a medium value of 5; diamond is a value of 10
Gold and pyrite look very similar, but their DENSITIES differ greatly.
rays from the invisible spectrum
the amount of mass in a given volume of the substance
an imperfection or blemish
the way in which light reflects from its surface
A dull hematite and a shiny hematite have the same STREAK because they are the same mineral.
the tendency of a mineral to break along flat surfaces
the amount of mass in a given volume of the substance
identifying characteristic features of a mineral
the color of powder left when the mineral is scraped
What is the Mohs scale based on?
the fact that a harder material will scratch a softer one
the atomic arrangement of atoms
the chemical properties of metals
mineral's color and luster will vary with each sample