Science test

Question 1

what common metal was worth more per ounce than gold before scientists found a practical means of xtracting it from ore

Answer 1

aluminum

Question 2

Which of these is not a mineral asbestos, platinum, feldspar, or lequid water

Answer 2

Liquid water

Question 3

the mineral cinnabar also called mercury sulfide, is an important source or _____ of mercury

Answer 3

ore

Question 4

which of the following is a mixture copper diamond sand seawater

Answer 4

seawater

Question 5

sulfur is native to mineral as quatz is to ______ ______

Answer 5

compound mineral

Question 6

what is a mineral with only one kind of atom

Answer 6

native minerals

Question 7

what are two or more substances combined but not chemically bonded

Answer 7

a mixture

Question 8

copper resists corrosiion because it froms a tough outlet layer when it tarnisheds

Answer 8

true

Question 9

all minerals are compose of two or more elements

Answer 9

false

Question 10

a geologist who studis and idetnities mineral samples is called a what

Answer 10

mineralogists

Question 11

what is the color of a minera’s powdera called

Answer 11

streak

Question 12

all native minearls are pure elements

Answer 12

true

Question 13

a minera’s steak is a more reliable way to classify a minearl than its apparent color

Answer 13

true

Question 14

some minerals can have more than one color

Answer 14

true

Question 15

the amount and quality of the light reflected form a minera’s surface is called what

Answer 15

luster

Question 16

some minerals are too had to leave astreak on a streak plate

Answer 16

true

Question 17

the process by which a crystal gows is called _________

Answer 17

accretion

Question 18

if a minearl produces regular flat sufaces when it breaks then it exhibits

Answer 18

cleavage

Question 19

cleavage and fracture both refer to the characteristic way in which a mineral breaks

Answer 19

true

Question 20

the Mohs scale is used to rate a minear’s resistance to fractureing

Answer 20

false

Question 21

which of teh following minerals has perfect cleavage magnetite mica pyrite or quartz

Answer 21

mica

Question 22

obsidian a mineral of volcanic orign breaks in smooth curves suraces what property deos it show

Answer 22

fracture

Question 23

a minearl rated as 1 on the mohs scale is what

Answer 23

soft

Question 24

what is the ratio of the density of a speciment to the density of water at 4 C

Answer 24

specific gravity

Question 25

when you conduct an acid test on a minraal sample you are watching for what

Answer 25

gas bubbles

Question 26

a dark minearl sample attracts iro fillings you could consclude that the mineral is what

Answer 26

magnetite

Question 27

a mineral sample that can glow for extended periods in the dark is said to be readioactive

Answer 27

false

Question 28

What is the glow caused by ultraviolet light illumination

Answer 28

flurescence

Question 29

what is the bending of light called

Answer 29

refraction

Question 30

_______ _________ occurs when a minera's crystal structure splits a light beam passin thorough it into two parts thus two images ares seen though a transparent crystal

Answer 30

Double reraction

Question 31

a mineral sample gives a strong reading on a geiger counter you could conclude that the mineral is

Answer 31

pitchblende

Question 32

a tranparent mineeral fluoresces red and exhibit doubl refraction you could conclude that the miner is

Answer 32

calcite

Question 33

the brilliance of a diamond is due to its high index of ________

Answer 33

refraction

Question 34

which of the following is not a vative mineral copper gold quartz silver

Answer 34

quartz

Question 35

placer deposits of mineral sediments are found deep underground

Answer 35

false

Question 36

the best metallic condcutor of eletricity is what

Answer 36

silver

Question 37

diamond is composed of carbon

Answer 37

true

Question 38

deep vertical shaft of rock produced by volcanic activity in which diamonds are frequently called waht

Answer 38

diamond pipes

Question 39

a carat is a unit of what

Answer 39

mass

Question 40

he most abunant family or class of minerals is the _____

Answer 40

silicates

Question 41

oxides are compounds that consits of_______ and another elemtne usually a metal

Answer 41

oxygen

Question 42

scientists theorize that some macaws eat caly because they have what

Answer 42

a mineral deficiency

Question 43

fool's gold a mineral of iron and sulfur, is classified as a what

Answer 43

sulfide

Question 44

mineral salts are properaly called what

Answer 44

halides

Question 45

the harder it is to obtian a mineral, the more common it becomes

Answer 45

false