Exercise 1-2 Mineral Identification

NAME: SECTION: DATE:



EXERCISE 1-2
Mineral ldentification
PURPOSE

The purpOse of this exercise is to help you master the process of identifying minerals.


Mineral ldentification
Use your lab manualto identify the mineral specimens listed on the following pages. Mineral sets
are essentially identical, but you should look at another set after you have completed yours. You are
responsible for learningonly the minerals numbered in chart on the following pages.




Exercise 1-2 | Mineral ldentification 13

, Mg,siO,,(oH)z O,H
Sio2
(CaMgFe)o.
SiO4
(MgFe,
Hornblene
Formula
and
Name S
Al,
Augite Galen Quartz
Oline
Talc PbS Fe, Si0
CaMg


Properties
sooPg
feels
heauy splinter
Very
Other


white streaK gray streaK
"white" white
Streak
no ho


white black
Color
gray black qreen eS
Vavi


Aracture fracture
lo0°+120°facture
Cleavage/
Fracture

3 2



Hardness 2.5 (o.s
7
metailic glassy
dull glassy
Luster
dull


# 1 2 3 4 25
7




14 Mineral ldentification | Exercise 1-2