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Earth Science Quiz: Rocks and Minerals | 10 Questions

How many rocks and minerals can you name and describe? Do you know which crystal system they belong to?

A multiple-choice quiz by DBGC64grl. Estimated time: 4 mins.

Author
DBGC64grl

Time
4 mins

Type
Multiple Choice

Quiz #
66,532

Updated
Dec 03 21

# Qns
10

Difficulty
Tough

Avg Score
5 / 10

Plays
3193

One at a Time - Single Page - Timed Game

Question 1 of 10

1. What common, pale yellow, metallic mineral has a greenish black streak and is used as a source of the mineral sulfur? Hint

Realgar

Pyrite

Cinnabar

Pyrrhotite

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Question 2 of 10

2. Which native element, noted for its high specific gravity and metallic luster, is noted for its yellow color? Hint

Gold

Arsenopyrite

Pyrite

Copper

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Question 3 of 10

3. What type of coal has a fixed carbon content of around 90 to 95 percent? Hint

Peat

Bituminous Coal

Anthracite Coal

Lignite

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Question 4 of 10

4. What extremely common silicate mineral has a hardness of 7 on the Mohs scale and is most often found as well-formed crystals belonging to the hexagonal system? Hint

Beryl

Zircon

Topaz

Quartz

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Question 5 of 10

5. From which other native mineral can arsenic be identified by its garlicky odor? Hint

Antimony

Platinum

Bismuth

Silver

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Question 6 of 10

6. What type of rock is granite? Hint

Metamorphic

Igneous

Sedimentary

Schist

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Question 7 of 10

7. Which mineral has perfect cleavage in six directions? Hint

Diamond

Sphalerite

Fluorite

Sodalite

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Question 8 of 10

8. Marble is composed of only one of two possible minerals. What are they? Hint

Quartz or malachite

Malachite or dolomite

Calcite or dolomite

Silica or calcite

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Question 9 of 10

9. What is the color of malachite? Hint

Yellow

Red

Blue

Green

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Question 10 of 10

10. To what crystal system do the crystals of magnetite belong? Hint

Isometric

Monoclinic

Orthorhombic

Tetragonal

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Quiz Answer Key and Fun Facts

1. What common, pale yellow, metallic mineral has a greenish black streak and is used as a source of the mineral sulfur?

Answer: Pyrite

A unique crystal type called 'pyritohedron' is named after this mineral.

2. Which native element, noted for its high specific gravity and metallic luster, is noted for its yellow color?

Answer: Gold

Gold is found in a variety of different forms, including nuggets, leaves, and even crystals.

3. What type of coal has a fixed carbon content of around 90 to 95 percent?

Answer: Anthracite Coal

If anthracite undergoes intense metamorphism from heat and pressure, it may eventually turn into graphite.

4. What extremely common silicate mineral has a hardness of 7 on the Mohs scale and is most often found as well-formed crystals belonging to the hexagonal system?

Answer: Quartz

Quartz comes in a variety of different colors, from clear to black.

5. From which other native mineral can arsenic be identified by its garlicky odor?

Answer: Antimony

When it is heated, arsenic gives off poisonous fumes smelling of garlic.

6. What type of rock is granite?

Answer: Igneous

Granite is made up mostly of silicate minerals.

7. Which mineral has perfect cleavage in six directions?

Answer: Sphalerite

Sphalerite is used as the main ore of zinc. Its formula is ZnS, or zinc sulfide.

8. Marble is composed of only one of two possible minerals. What are they?

Answer: Calcite or dolomite

Marble is made up of only calcite or only dolomite. Sometimes impurities might be present.

9. What is the color of malachite?

Answer: Green

Malachite is a copper mineral, and crystals of it are hard to find.

10. To what crystal system do the crystals of magnetite belong?

Answer: Isometric

Magnetite is strongly magnetic; it is also an ore of iron.

Source: Author DBGC64grl

This quiz was reviewed by FunTrivia editor crisw before going online.
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