For
a list of the lab minerals and their properties click here!
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1. List and describe all of the mineral tests
in this lab. 2. Some Minerals can be identified by a
single property, list such minerals
and the property that you used to identify them. 3.
What color is biotite? List two other
properties that are useful in
identifying biotite. 4.
There is a second mineral that belongs to the same mineral group
as biotite. What is this mineral, its
group, and its color? 5.
Explain why the feel of gypsum and talc can be used to distinguish
between the minerals. (both have hardness
of 1-2) 6.
Explain how cleavage and fracture can be used to distinguish between
quartz and feldspar. (both have
hardness of 6-7) 7.
Explain how cleavage can be used to distinguish between halite and
calcite. Name two more properties
that distinguish each. 8.
What is the element that makes chalcopyrite different from pyrite. What is the most obvious difference
between them? 9.
What is the difference between silicates and ferromagnesian silicates? What similarities do they have? 10. Write the formula for
calculating specific gravity. How does the specific
gravity of metallic minerals compare to the specific gravity
of nonmetallic minerals? 11.
How does the length of the crystals in hornblende compare to the
length of the crystals in augite? Which
is a pyroxene and which
is an amphibole? 12.
What are rock-forming minerals? 13.
Most rock forming minerals belong to what mineral group? |