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Earth Science Chapter 2 Flashcards | StudBud
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Earth Science Chapter 2
Earth Science Chapter 2
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Answers
1
Native Minerals...
are made of one element
can be separated
2
Which Mineral is an Oxide?
Olivine (Fe,Mg)2SiO4
Halite (NaCl)
Magnetite (Fe2O3)
Sulfur (S)
3
Is
Quartz (SiO
2
)
a silicate mineral or a non-silicate mineral?
Non-Silicate
Silicate
4
Man made diamonds are a natural rescouce
False
True
5
PYRITE IS METALLIC LUSTER?
False
True
6
Which property is the least reliable for mineral identification?
Hardness
Streak
Color
Luster
7
What are the 2 most common rock forming minerals that make up 50% of the Earth's crust?
halite and feldspar
silicon and feldspar
mica and quartz
feldspar and quartz
8
Luster? What's that?
The way a surface reflects light.
The way a surface reflects light with ultraviolet light.
The way a mineral looks when exposed to darkness.
The way a mineral looks and feels.
9
non silicate minerals take up 4% of the earths crust.
True
False
10
The fracture of a mineral refers to...
if it has rough edges when it breaks
if it breaks along a straight plane
if it breaks easily
if it is metallic or not
11
silicate minerals take up what percentage of the earths crust ?
87%
10%
5%
96%
12
What is the softest mineral?
Talc
Gypsum
Corundum
Diamond
13
What type of luster does this mineral have?
non-metallic
cleavage
metallic
fracture
14
The two most common silicate minerals are
diamond and corundum
galena and graphite
calcite and halite
quartz and feldspars
15
When minerals break along a flat, clean plane
fracture
cleavage
hardness
fluorescence
16
What is the formula of Quartz?
NaCl
S
PbS
SiO2
17
What is the hardest mineral?
Gypsum
Corundum
Diamond
Talc
18
A regular geometric shape of a mineral
face pattern
ductility
luster
crystal
19
Define: Fluorescence
Mineral in which the mineral reflect under ultraviolet light
Mineral in which, the mineral glows under ultraviolet light
A particle of a mineral
A particles of a mineral
20
characteristics of mineral is
inorganic
solid
all of the above
chemical composition
21
Classes of Nonsilicate Minerals
Silicate and and non silicate
Color, Hades, carbon dioxide, water
Native Elements, Sulfides, Oxides, Carbonates, Halides, Sulfates
Water and air
22
Which correctly lists all the mineral identification properties?
crystalline, hardness, solid, streak
luster, color, inorganic, naturally formed
crystalline, inorganic, solid, naturally formed
hardness, luster, color, streak
23
Minerals that break evenly have
cleavage
streak
fracture
luster
24
What is the definition of a Physical Property
Characteristics of a characteristic that you can observe.
Characteristics of a building that you can observe.
Characteristics of a substance that you can observe.
25
The mineral calcite has the special property of
asterism
streak
double refraction
chatoyancy
26
Does this mineral have a metallic or nonmetallic luster?
neither metallic or non metallic
metallic
nonmetallic
27
Silicate minerals contain a combination of the elements...
Iron and oxygen
Silicon and oxygen
Carbon and oxygen
Sulfur and oxygen
28
Has hexagonal crystal shape
sulfur
hematite
quartz
diamond
29
Hardness
a bug species
A mineral's ability to resist being scratched
a fruit
a mineral's ability to resist being smashed
30
How Many Minerals Are There
90
1
200
over 3,000
31
9. Silicate minerals make up more than... of the Earth's crust.
90%
80%
70%
20%
32
The Mohs scale of hardness
measures the hardness of minerals relative to one another
is unreliable as a method of identifying minerals
measures absolute hardness
is not an ordinal scale
33
Does this Mineral have Cleavage or Fracture?
Cleavage
Fracture
34
Silicate minerals contain a combination of the elements...
Sulfur and oxygen
Carbon and oxygen
Iron and oxygen
Silicon and oxygen
35
The two main groups of minerals based on their chemical composition
oxides and carbonates
silcates and nonsilicates
sulfides and sulfates
metallics and nonmetallics
36
What is a compound?
atoms of different elements bonded together in certain ratios
separate atoms of multiple elements in varying ratios
2 atoms of a single element bonded together
a molecule of two oxygen atoms
37
What is a mineral?
A solid inorganic substance of natural occurence
A rock
