1 Mineral Id Homework Worksheet 3 25 with citations-1 (1)
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Temple University *
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2001
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Geology
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Dec 6, 2023
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Mineral Identification Practice Worksheet
Name:
Name the physical property described by the statement below.
Scratches glass
Shines like a metal
Produces a grey powder
Feels grainy
Breaks along smooth planes
Feels very heavy
List the cleavage of the mineral named below.
Include both the
number of cleavage planes and the angle between them.
Biotite Mica
Galena
Orthoclase Feldspar
Quartz
Calcite
1
What physical property can be used to distinguish.
Halite from Calcite
Pyroxene (Augite) from
Amphibole (Hornblende)
Biotite mica from Muscovite
mica
Gypsum from Fluorite
Name a mineral that exhibits this diagnostic physical property.
Multiple colors
Fracture
Vitreous luster
One direction of cleavage
Metallic luster
Fizzes with HCl
How is Habit different from Cleavage?
2
Explain how a mineral can have a high specific gravity while it has a
low hardness number.
Give one mineral example.
Thinking about the Mohs Hardness Scale
,
If a mineral scratches glass, it is harder than this number?
If you can scratch the sample with your fingernail, the mineral is softer than this
number?
Using the following 10 (ten) images:
1)
What physical property is represented in the mineral image?
2)
Try to identify the mineral by name.
Image 1:
openpress.usask.ca CC BY 4.0 L Hauber & Joyce McBeth
3
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Image 2:
openpress.usask.ca CC BY 4.0 Joyce McBeth
Image 3:
Open Press CC BY SA 3.0 R Harris
https://oer.galileo.usg.edu/geo-textbooks/1
Image 4:
Open Press CC BY SA 3.0 R Harris
https://oer.galileo.usg.edu/geo-textbooks/1
4
Image 5:
openpress.usask.ca CC BY 4.0 L Hauber & Joyce McBeth
Image 6:
R Harris CC BY SA 3.0
https://oer.galileo.usg.edu/geo-textbooks/1
Image 7:
R. Weller.
http://skywalker.cochise.edu/wellerr/mineral/pyrite/streak1.htm
5
Image 8:
R Weller
http://skywalker.cochise.edu/wellerr/mineral/galena/galenaL.htm
Image 9:
R weller
http://skywalker.cochise.edu/wellerr/mineral/fluorite/fluorite1.htm
Image 10:
R weller
http://skywalker.cochise.edu/wellerr/mineral/bauxite/bauxite2.htm
6
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Make a list of the mineral samples used in lab:
1)For each of the minerals used in lab, list their diagnostic properties.
Note it may
be 2 or more properties.
Only
list the properties that help you identify the
sample.
Use your notes from the lab and samples.
FOR EXAMPLE: Olivine – unique olive-green color, Grainy tactile
feel, lab samples show fracture.
2) Use the internet to provide an economic use for several of the mineral seen in
lab (minimum 5).
Here are a few good sources to help with your exploration.
Geology.com, scienceviews.com, nma.org, NAP critical minerals book (on canvas).
3) Have you used any minerals today?
While initially most people may not be able
to identify specific examples of minerals in their everyday life it is certain that you
have used many minerals and elements.
Think about your day, brushing your
teeth, eating breakfast, using a computer or cellphone, or commuting to school.
If
you have done any of these things you have used a great many minerals.
Choose
a simple common object and explore the materials used in this product.
Additional Mineral Practice can be found at this weblink.
The images are
helpful.
https://openpress.usask.ca/geolmanual/front-matter/chapter-pdf-files-for-download/
scroll down to chapter 2 Minerals.
http://profharwood.x10host.com/GEOL101/Labs/Minerals/Min01.htm
Try a few minerals to test yourself.
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