Standards ReviewMinerals - S6E5. Students will investigate the scientific view of how the earth’s surface is formed.b. Investigate the contribution of minerals to rock composition.

1. Minerals are solids that occur naturally and have a definite structure and chemical composition.

A. TRUEB. FALSE

2. Which property describes the way a mineral reflects light?

A. CLEAVAGEB. EFFERVESCENCEC. LUSTERD. STREAK

3. An unknown mineral sample can be scratched by a knife blade, but not by a fingernail. According to Moh’s Scale, what might be the mineral?

A. DIAMONDB. CALCITEC. QUARTZD. TOPAZ

4. What is the difference between a mineral and a rock? You may write it in a table or in a short paragraph.

1. Minerals are solids that occur naturally and have a definite structure and chemical composition.

A. TRUEB. FALSE

2. Which property describes the way a mineral reflects light?

A. CLEAVAGEB. EFFERVESCENCEC. LUSTERD. STREAK

3. An unknown mineral sample can be scratched by a knife blade, but not by a fingernail. According to Moh’s Scale, what might be the mineral?

A. DIAMONDB. CALCITEC. QUARTZD. TOPAZ

4. What is the difference between a mineral and a rock? CHARACTERISTICS OF MINERALS AND ROCKS

MINERALS ROCKS

pure (made of same substance)

more than one mineral

some have crystals not single crystals

usually pretty not usually as pretty

usually have a shape no definite shape

color is usually the same color is not the same

no fossils some have fossils

1. The specific gravity of a mineral compares its weight with an equal volume of ______.

A. DiamondB. WaterC. AirD. Rock

2. An inorganic crystalline solid is formed in a lab. Why is it not a mineral?

A. It is a solid.B. It is a crystal.C. It is not naturally occurring.D. It is inorganic.

3. Which of the following groups of minerals is most common in the earth’s crust?

A. OxidesB. SilicatesC. Ore mineralsD. Sulfates

4. If you found a metallic gold colored mineral on the ground, which properties of minerals would best to help you determine whether the mineral is gold or pyrite (fool’s gold)? How would you use those properties to identify the mineral?

1. The specific gravity of a mineral compares its weight with an equal volume of ______.

A. DiamondB. WaterC. AirD. Rock

2. An inorganic crystalline solid is formed in a lab. Why is it not a mineral?

A. It is a solid.B. It is a crystal.C. It is not naturally occurring.D. It is inorganic.

3. Which of the following groups of minerals is most common in the earth’s crust?

A. OxidesB. SilicatesC. Ore mineralsD. Sulfates

4. If you found a metallic gold colored mineral on the ground, which properties of minerals would best to help you determine whether the mineral is gold or pyrite (fool’s gold)? How would you use those properties to identify the mineral?

If I found a metallic gold colored mineral on the ground, I would use the following properties to determine if it was gold or pyrite: crystal form, fracture, streak, and hardness.I would use the information I gained from the tests to compare the mineral to a data table filled with the information about gold and pyrite.

2. Victoria discovered a mineral while on a field trip to Stone Mountain; was trying to determine which mineral she found. As she observed the mineral, she used which of the following to determine her answer?

A. Location B. OpaquenessC. Origin D. Size

1. Use the chart above to answer the following question: Alexis wants to identify a dark, heavy mineral sample she found in the classroom collection. She notices there are three minerals in a chart in a reference book that might match her sample. Alexis next observes that her sample mineral has flat, reflective surfaces that break into boxlike steps. She infers the mineral may be galena.  If she is correct, one more test will verify her inference. Which property would be best for her to observe next? Mineral Hardness Way it breaks Luster Streak Color

Galena 2.5 cleavage metallic gray-black silver, gray

Magnetite 6 fracture metallic black black

Hematite 6 fracture metallic-dull red-brown red-brown, silver, black

2. Victoria discovered a mineral while on a field trip to Stone Mountain; was trying to determine which mineral she found. As she observed the mineral, she used which of the following to determine her answer?

A. Location B. OpaquenessC. Origin D. Size

1. Use the chart above to answer the following question: Alexis wants to identify a dark, heavy mineral sample she found in the classroom collection. She notices there are three minerals in a chart in a reference book that might match her sample. Alexis next observes that her sample mineral has flat, reflective surfaces that break into boxlike steps. She infers the mineral may be galena.  If she is correct, one more test will verify her inference. Which property would be best for her to observe next? Mineral Hardness Way it breaks Luster Streak Color

Galena 2.5 cleavage metallic gray-black silver, gray

Magnetite 6 fracture metallic black black

Hematite 6 fracture metallic-dull red-brown red-brown, silver, black

She would check all the properties and notice that the three minerals havecolor and luster in common. While streak and the way it breaks have differences,they are not as accurate as hardness. The hardness of galena is 2.3 and this wouldbe the most accurate way to identify her mineral.

1. What are three of the requirements of a mineral?A. Organic, chemical formula,

fossilsB. Man-made, inorganic, lusterC. Solid, inorganic, found in

natureD. Fracture, color, streak

2. What are three types of luster?A. Metallic, rock-like, dullB. Metallic, glassy, dullC. Metallic, shiny, dullD. Metallic, tasty, dull

3. Fluorite and Talc are a way minerals break.

A. TrueB. False

4. Describe two ways a mineral can form from a solution. Write your answer.

1. What are three of the requirements of a mineral?A. Organic, chemical formula,

fossilsB. Man-made, inorganic, lusterC. Solid, inorganic, found in

natureD. Fracture, color, streak

2. What are three types of luster?A. Metallic, rock-like, dullB. Metallic, glassy, dullC. Metallic, shiny, dullD. Metallic, tasty, dull

3. Fluorite and Talc are a way minerals break.

A. TrueB. False

4. Describe two ways a mineral can form from a solution. Write your answer.One way minerals can form from a solution is through evaporation of water. Another way is if too much of a substance is dissolved in water, ions can come together and crystals of that substance can begin to form in the solution.