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40 questions
The minerals talc, muscovite mica and quartz are similar because they
have the same hardness
are the same color
contain silicon and oxygen
break along cleavage planes
Which mineral is commonly mined as a source of the element lead (Pb)?
Galena
Quartz
Magnetite
Gypsum
Which of the following elements is NOT found in Plagioclase Feldspar?
Na
Al
Si
Pb
The mineral above is most likely
garnet
quartz
olivine
halite
Which two properties are most useful in distinguishing between galena and halite?
cleavage and color
luster and color
hardness and streak
streak and cleavage
Which mineral has a metallic luster, a black streak, and is an ore of iron?
Galena
Magnetite
Pyroxene
Graphite
Which property was used to classify these minerals?
color
luster
chemical composition
hardness
The mineral graphite is often used as
a lubricant
an abrasive
a source of iron
a cementing material
Which physical property of the mineral is most easily seen in the photograph?
fracture
hardness
streak
cleavage
Which mineral will scratch glass (hardness= 5.5), but not pyrite?
gypsum
fluorite
orthoclase
quartz
A mineral was found with a metallic luster. It was yellow in color and had a greenish black streak. Is it gold?
yes
no
A mineral was found that can be scratched by quartz but not fluorite. It is green in color but has a colorless streak. What mineral is it?
Bauxite
Garnet
Hornblende
Feldspar
This mineral has a nonmetallic luster. It is colorless with a colorless streak. A fingernail cannot scratch it and it cannot scratch a fingernail. What mineral is it?
Halite
Muscovite
Galena
Calcite
This mineral can be scratched by hornblende but is harder than sulfur. It is pink with a white streak. What is it?
Dolomite
Gypsum
Feldspar
Chromite
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