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