Mineral Review

1

100

One of the softest minerals is _______ . a.) topaz b.) quartz c.) talc d.) amethyst

c. ) talc

200

Your fingernail will scratch gypsum. This is an example of the physical characteristic called ______. a. ) hardness b. ) streak c. ) fracture d. ) cleavage

a.) hardness

300

Muscovite mica will peel off in flat sheets. This is an example of the physical characteristic called________. a.) hardness b.) streak c.) fracture d.)cleavage

d.) Muscovite has one cleavage direction and peels off in sheets.

400

How do atoms form minerals? a.) When magma cools, crystals are formed. b.) When water evaporates, particles of substances dissolved in the water form crystals. c.) When heat and pressure can rearrange atoms to form new minerals d.) all of the above

d.) all of the above

500

All minerals share the following characteristics EXCEPT that of ________. a.) being formed by natural processes b.) being formed from living organisms c.) being solids d.) having the atoms within the mineral arranged in a pattern

b.) being formed from living organisms Minerals CANNOT be organic.

2

100

color of a powdered mineral

streak

200

a measure of how easily a mineral can be scratched

hardness

300

the tendency of a mineral to break along a smooth, flat surface

cleavage

400

how light is reflected from a mineral

luster

500

the tendency of minerals to break with rough or jagged surfaces

fracture

3

100

Materials that were once alive contain the element _______ and are not minerals.

carbon

200

_______ is observed by scratching a mineral across a tile of unglazed porcelain.

Streak

300

If you pick up two minerals that are about the same size, one might feel heavier because it has a higher _______.

density

400

If you refer to a mineral as shiny. You are commenting on the _______ of the mineral.

luster

500

Diamonds are _______ than quartz. (Hint: Use Mohs scale to know)

harder

4

100

What determines the size of crystal structure in a mineral?

the amount of room it has to grow

200

How could a woman test and see if her ring contains a real diamond or an artifical one?

She could see if the mineral would cut glass.

300

Name three of the properties used to identify minerals. (hint: What information did you look up for your PowerPoint presentation?)

density, hardness, color and streak, luster, cleavage, fracture

400

Name two examples of the everyday use of the mineral you used for your PowerPoint.

table salt, toothpaste, cosemetics, cans, batteries, gemstones

500

If a mineral can glow under ultraviolet light, it displays what property?

fluorescence

5

100

Name two examples of the everyday use of the mineral you used for your PowerPoint.

table salt, toothpaste, cosemetics, cans, batteries, gemstones

200

Some minerals are formed when ______ cools.

magma

300

Which is an example of a mineral being used in everyday life? a.) coal being used for heating b.) mica is used in the manufacturing of cosmetics c.) lumber is used to build shelters d.) all of the above

b.) mica is used in the manufacturing of cosmetics Remember that all minerals are inorganic. Coal and lumber are formed from once-living, organic materials.

400

Which of the following is not part of the definition of a mineral? a.) inorganic b.) man-made c.) solid d.) definite chemical composition

b.) man-made A mineral is a naturally occuring, inorganic solid that has a crystal structure and a definite chemical composition.

500

When liquid evaporates, atoms of any dissolved minerals stay behind and form ______.

crystals