minerals

Question 1

color

Answer 1

appearance of light viewed within the visible part of the electromagnetic spectrum (ROYGBIV)

Question 2

streak

Answer 2

powdered state of a mineral when rubbed along a porcelain plate

Question 3

luster

Answer 3

appearance of a mineral when light reflects off a minerals surface

Question 4

hardness

Answer 4

a mineral´s ability to resist abrasion; metallic vs non metallic

Question 5

moho hardness cale

Answer 5

ranges from 1 to 10
it is determined by comparing a hardness kit to an unknown mineral sample

Question 6

cleavage

Answer 6

breakage along planes of weakness

Question 7

rock

Answer 7

consists of one or more minerals

Question 8

monomineralic

Answer 8

contains one mineral only

Question 9

example of monomineralic rocks

Answer 9

limestone - calcite
marble - calcite

Question 10

polymineralic

Answer 10

contains 2 or more minerals

Question 11

examples of polymineralic rocks

Answer 11

basalt - microscopic crystals gabbro
granite - visible crystals

Question 12

igneous

Answer 12

molten rock (liquid); Volcanic eruptions
melting and soilification

Question 13

sedimentary

Answer 13

rock fragments cemented together

Question 14

metamorphic

Answer 14

rocks pushed back into earth under high heat and pressure; form withn interior of mountains

Question 15

solidification

Answer 15

for a liquid to change into a soild

Question 16

magma

Answer 16

liquid rock below Earth´s surface

Question 17

crystallization

Answer 17

liquid to soild (crystals) form interlocking crytals randomly arranged

Question 18

how rocks are classified

Answer 18

by crystal size and texture

Question 18

lava

Answer 18

liquid rock near/at/above earth´s surface

Question 19

coarse -
fine -
glassy -

Answer 19

large crystals
small crystals
no crystals

Question 20

felsic

Answer 20

light color and low density

Question 21

mafic

Answer 21

dark color and high density

Question 22

result of rate of cooling
fast =
slow =

Answer 22

small or tiny crystals form
large crystals form

Question 23

Which metamorphic rock forms only by contact metamorphism?

Answer 23

Hornfels

Question 24

Monomineralic

Answer 24

rock consisting of one mineral

Question 25

Polymineralic

Answer 25

rock consisting of more than one

Question 26

Metamorphic rocks

Answer 26

formed by heat and pressure

Question 27

Sedimentary rocks

Answer 27

formed by compaction (squeeeze) and cementation

Question 28

amorphous

Answer 28

lacks crystals