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| 1 | |
Glass is not a crystal because __________.
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| | A) | it is not crystalline |
| | B) | it fractures |
| | C) | it is transparent |
| | D) | it is a solid |
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| 2 | |
Titanium is useful because it has __________.
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| | A) | a high density and low durability |
| | B) | a colorless streak |
| | C) | a low Mohs number |
| | D) | a low density and high durability |
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| 3 | |
Whether a mineral has cleavage or fracture is determined by the __________.
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| | A) | hardness of the mineral |
| | B) | shape of its surface |
| | C) | arrangement of its atoms |
| | D) | specific gravity |
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| 4 | |
All minerals are __________.
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| | A) | unordered |
| | B) | naturally occurring |
| | C) | organic solids |
| | D) | made in a lab |
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| 5 | |
Salt from evaporated seawater has been formed from __________.
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| | A) | magma |
| | B) | volcanoes |
| | C) | solution |
| | D) | artificial means |
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| 6 | |
Which is an example of a mineral with a nonmetallic luster?
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| | A) | pyrite |
| | B) | graphite |
| | C) | quartz |
| | D) | gold |
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| 7 | |
The hardest mineral, with a 10 on the Mohs scale, is __________.
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| | A) | talc |
| | B) | quartz |
| | C) | iron |
| | D) | diamond |
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| 8 | |
Streak measures the color of a mineral's __________.
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| | A) | powder |
| | B) | crystals |
| | C) | atoms |
| | D) | surface |
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| 9 | |
Which is an industrial use of diamonds?
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| | A) | as cutting tools |
| | B) | in lasers |
| | C) | in watches |
| | D) | in jewelry |
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| 10 | |
Some gems have __________.
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| | A) | fracture |
| | B) | a crystalline structure |
| | C) | a low Mohs number |
| | D) | no color |
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| 11 | |
Common physical properties of minerals include all of the following except __________.
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| | A) | appearance |
| | B) | specific gravity |
| | C) | hardness |
| | D) | flammability |
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| 12 | |
What is the easiest way to tell if a sample is gold or pyrite?
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| | A) | luster |
| | B) | streak |
| | C) | hardness |
| | D) | appearance |
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| 13 | |
An inorganic crystalline solid is formed in a lab. Why is it not a mineral?
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| | A) | It is not naturally occurring. |
| | B) | It is a crystal. |
| | C) | It is inorganic. |
| | D) | It is a solid. |
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| 14 | |
Large crystals can form when magma __________.
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| | A) | erupts from a volcano |
| | B) | cools slowly |
| | C) | cools quickly |
| | D) | melts |
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| 15 | |
What are the two most common elements in minerals?
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| | A) | oxygen and silicon |
| | B) | iron and oxygen |
| | C) | oxygen and sulfur |
| | D) | carbon and silicon |
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| 16 | |
The Hope diamond, which is now at the Smithsonian, is said to __________.
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| | A) | bring its owner good fortune |
| | B) | bring its owner bad luck |
| | C) | be one of the smallest diamonds in the world |
| | D) | be an impure diamond |
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| 17 | |
The specific gravity of a mineral compares its weight with an equal volume of __________.
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| | A) | water |
| | B) | rock |
| | C) | air |
| | D) | diamond |
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| 18 | |
All of the following are some other property used to identify minerals except __________.
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| | A) | magnetism |
| | B) | the ability for the mineral to create a double image |
| | C) | reaction to hydrochloric acid |
| | D) | boiling point |
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| 19 | |
You find a red gemstone that is from Sri Lanka. What gem is this most likely?
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| | A) | topaz |
| | B) | emerald |
| | C) | ruby spinel |
| | D) | sapphire |
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| 20 | |
Where do most useful minerals occur in nature?
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| | A) | in ores |
| | B) | in volcanoes |
| | C) | in seawater |
| | D) | in freshwater |
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