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Science > In the Moh's Scale > Flashcards

In the Moh's Scale Flashcards

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1
Q

What mineral(s) is the number 1 on the Mohs scale?

A

Talc and graphite

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2
Q

What is common in metamorphic rocks and has a soapy or greasy feel?

A

Talc

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3
Q

What is a form of the mineral carbon and has a metallic luster and a greasy feel?

A

Graphite

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4
Q

What can be scratched with your fingernail?

A

Gypsum

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5
Q

What is number 2 on the hardness scale?

A

Gypsum

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6
Q

What is number 3 on the scale?

A

Calcite

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7
Q

What cannot be scratched with your fingernail, but can be scratched with a copper coin?

A

Calcite

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8
Q

What can be found in stalagmites and stalactites that form in caverns?

A

Calcite

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9
Q

What is also called calcium fluoride and number 4 on the hardness scale?

A

Fluorite

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10
Q

What is used as compound that causes iron ore to flow more easily during the process of refining the ore?

A

Fluorite

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11
Q

What is number 5 on the hardness scale?

A

Apatite

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12
Q

What is used in making fertilizer and is in an acid used to flavor soft drinks?

A

Apatite

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13
Q

What minerals, in order of increasing hardness, are number 6,7, and 8 on the hardness scale?

A

Orthoclase, quartz, and topaz

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14
Q

What mineral is usually colorless?

A

Topaz

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15
Q

What is next to the diamond on the hardness scale?

A

Corundum

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16
Q

What has a hardness of 9?

A

Corundum

17
Q

What is used as an abrasive and as a gem?

A

Corundum

18
Q

What is a dull mineral, with a gray, blue, pink, or brown color?

A

Common corundum

19
Q

What is a natural mixture of corundum with magnetite and other minerals?

A

Emery

20
Q

What is dark gray to black and has a hardness of 7 to 9?

A

Emery

21
Q

What is listed as number 10 on the hardness scale and is the hardest of all minerals?

A

Diamond

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