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Everyday Uses of Minerals

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Questions and Answers

What do geologists consider as a mineral?

Any naturally occurring inorganic solid with a crystalline structure and a chemical formula (correct)

Any artificially created inorganic solid with a specific color

Any naturally occurring organic solid with a specific shape

Any non-naturally occurring inorganic solid with a unique composition

What is the material used to make pencils?

Talc

Gypsum

Silicon

Graphite (correct)

Which mineral is derived from quartz and used to make computer chips?

Silver

Silicon (correct)

Copper

Gold

What is the term used by the mining industry to refer to minerals?

Anything taken from the ground Signup and view all the answers

Which mineral is used to make wall board?

Gypsum Signup and view all the answers

'Is it an animal, is it a vegetable, or a mineral?' in the game '20 questions' refers to what kind of definition of mineral?

Broad and inclusive Signup and view all the answers

What do geologists emphasize when defining a mineral?

Naturally occurring and inorganic nature Signup and view all the answers

What is luster in the context of minerals?

The overall sheen on the surface of a mineral Signup and view all the answers

Why is color not generally used to identify a mineral?

Because the color of minerals varies considerably Signup and view all the answers

Which mineral has a glassy/vitreous luster?

Stellerite Signup and view all the answers

What property is used to identify minerals based on their ability to transmit light?

Light transmission Signup and view all the answers

What is the streak of a mineral?

The appearance in powdered form when rubbed across porcelain Signup and view all the answers

Why is the streak of a mineral more helpful in identification than its apparent color?

Because the streak is more consistent than the apparent color Signup and view all the answers

What is the luster of kaolinite?

Earthy Signup and view all the answers

What does it mean if a mineral is said to be transparent?

It can transmit both light and an image Signup and view all the answers