Minerals Image Guide, help homework

Description

Using the
Key and the Mineral Images Guide, identify the 15 minerals. On the Word
file provided, list the identified minerals by number, and briefly
explain how you identified each.

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Identify the following minerals using the Key provided. Place the names with the
appropriate number.
Augite, Biotite, Calcite, Galena, Graphite, Gypsum, Halite, Hematite, Hornblende,
Kaolinite, Microcline (Orthoclase), Muscovite, Plagioclase, Pyrite, Quartz
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15.
Luster
Metallic
Luster
Cleavage
Color
Cleavage
present
No
Name
Galena
Cleavage
Graphite
Pyrite
Properties
Shiny, silver-­­gray;
excellent
cubic
cleavage
Shiny, silver-­­gray; no
form
Brassy-­­yellow;
often
as
a
collection
of
cubic crystals
Plagioclase
Microcline
(Orthoclase)
Light
Color
in
Cleavage
Present
Muscovite
Calcite
Gypsum
Non-­­metallic
Luster
Halite
Augite
Dark
Color
in
Hornblende
Biotite
Light
Color
in
Cleavage
Absent
Dark
Color
in
Light
gray-­­white color;
two
planes
of
cleavage
at
90°
Peachy-­­pink color; two
planes of
cleavage
at
90°
Clear-­­light
brown;
one
plane of
cleavage;
transparent-­­
translucent
Clear-­­white; transparent-translucent;
cleavage
at
75°
Clear-­­white; transparent-translucent;
one
good
plane
of
cleavage,
two
poor planes
Clear-­­white; transparent-translucent;
cubic
cleavage
Dark
green;
cleavage
planes
at
90°
Black; cleavage
planes
at
60°
and
120°
Clear-­­black; one
plane
of
cleavage;
transparent-­­translucent
Quartz
Clear-­­translucent;
cleavage
no
Kaolinite
Chalk-­­like;
white
Hematite
Red-­­brown;
nodules
small round
Cleavage plane
1
1
Cleavage plane
Top
view
1
2
Cleavage plane
1
2
3
5
4
6
Broken end
8
7
9
10
Side view
11
Top
view
12
Top
Bottom
13
13
14
15
15

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