Department of Earth Science
| Northeastern Illinois University
INTRO TO EARTH SCIENCE
INTRODUCTION TO EARTH SCIENCE
Reminder: We have
an exam on Thursday! The exam will include
hands-on work with lab materials.
By the end of
today's class, you should be able to do the
Review: Demonstrate the correct use of a hand lens for
examining minerals and rocks.
Review: Describe some of the characteristics of minerals
that allow us to classify them and discern their
properties, including luster,
color, and hardness.
Demonstrate how to approximate the
hardness of a mineral specimen, using a
scratch plate and other tools
available in the lab.
Explain how to tell if a mineral specimen has a
specific gravity or density
that is much higher or much lower than that of
most other minerals.
Demonstrate how to use a streak plate
to determine a mineral specimen's
streak, and explain why the streak
sometimes is not the same color as the mineral
Explain why some minerals exhibit mineral
cleavage, and how and why cleavage is
different for different minerals.
Demonstrate how to determine the number and
direction of cleavage planes of a
Demonstrate how to determine a mineral's
List the two common ways to recognize that a
mineral is soluble in a weak acid.
Demonstrate how to use a mineral
CAREERS IN EARTH SCIENCE
FOR GEOSCIENTISTS: $79,160
Copyright 2010 Laura L. Sanders. Last updated
September 12, 2010.