Lab 3 Mineral Properties and Minerals Online Supplement
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University Of Georgia *
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Course
1121L
Subject
Geology
Date
Feb 20, 2024
Type
docx
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3
Uploaded by MagistrateGalaxy12550
Lab 3 Spring 2024
Lab 3: Mineral Properties and Minerals Online Supplement
Student Name: Emily Matthews
(For TA Use) Raw score_____/37
Points______/100
To complete this lab, find supplied materials in eLC (where you got this file) in the folder Assignment Lab 3: Mineral properties and minerals Online Supplement. Remember Lab 3 has an in-
person component you must do in the lab. Use a word processor to modify this file and type in your responses. Whatever word processor you use,
save your work as a PDF and upload it to eLC.
Write down questions that develop and ask your TA during your class time or via email. Familiarize yourself with the slides in eLC and watch any videos linked. Linked videos are in your slideshows AND on this worksheet. Answer the questions below to receive credit. Items are not necessarily in order, so you will have to do some searching and remember where you have found things and go back to them.
To help us get started on understanding what geology is, please watch the video below on YouTube from the Jackson School of Geosciences at University of Texas - Austin: Earth is Calling: 2 pts https://www.youtube.com/watch?v=naMxvhPdi5g
1.
From the video Earth is Calling: List and briefly describe two things mentioned in the video that you may have thought were part of geology from your prior experience. Two things I thought were part of geology from my prior experience were chemistry and
biology. I knew chemistry would be a part of geology as everything on earth has a chemical composition, the earths surfaces included. Biology was another that I figured would be included in geology as geology is the study of earth’s physical structure and part of the earth’s physical structure is influenced by the living organisms in biology. 2.
List and briefly describe two things mentioned in the video you may not
have thought were part of geology from your prior experience.
Two things I did not know that were part of geology were math and engineering. I did not consider math a part of geology as we are talking about earth’s physical structure and not mathematical equations. Engineering was another I did not consider, because you would assume most of earth’s natural physical structures were created organically and not engineered by humans. One thing geologists, and geology majors, do is develop a deep understanding for identifying and categorizing minerals and rocks. This class (1121) is more focused on the bigger ideas of processes and environments, however it is important to have some understanding of minerals that compose rocks.
From Slides for Lab 3 in eLC:
3.
What is the definition of a mineral? 5 pts
A mineral is a naturally occurring, inorganic, solid, crystalline structure with a definite composition.
Lab 3 Spring 2024
4.
Is ice in a glacier a mineral? 2 pts
Yes
5.
Does this mineral appear to show cleavage or crystal shape? Crystal Shape
2 pts.
6.
Why would samples of the same mineral potentially be several different colors? (4 points) Because there is a small amount of certain elements not common to a that mineral present.
7.
At the end of the slides you will find a video about fluorescent minerals at Washington University in St. Louis. Which statement is most consistent with fluorescence? (2 points) response: C
a.
Incoming light energy can be absorbed by protons in the atoms in the mineral. That absorption into the proton, drops it down to a new energy level and sometimes, that energy lost also emits energy and that energy may be fluorescing light.
b.
Incoming light energy can be reflected by certain atoms in the mineral and it will be a certain characteristic light color depending on the shape of the mineral
c.
Incoming light energy can be absorbed by electrons around atoms in the mineral. That absorption excites the electron, popping it up to a new energy level and sometimes,
Lab 3 Spring 2024
that energy can be released with a little packet of energy and that energy may be (fluorescing) light.
“Lab 1: Rocks and Minerals” From the Lab Coordinators YouTube channel: https://www.youtube.com/watch?v=wa4_bC4tgc8
This video is from a location in western Colorado: You can use Google Earth Pro and search for “Mica Mine, Grand Junction, CO”. The “point” google earth shows is a short distance down-canyon from the actual mine, but maybe you can find it? Not for points, just an activity. You will be using Google Earth Pro extensively in the future, so try it out now. Look for clues in the video.
This video will be used in more than one lab. For now, focus on the earlier part of the video and watch the second half (approximately) for a forecast of your future learning. Minerals are always found in a particular context of a geologic environment and we begin to show you those environments in our placed-based exploration. Our laboratory-based collections of rocks have lost their connection to the real environment and don’t have the same meaning that samples found in the field have.
8.
What five silicate minerals are discussed from the Mica Mine? 5 pts
Muscovite, quartz, potassium feldspar, tourmaline, biotite
9.
What physical characteristics of minerals (as named in the PowerPoint Slides) are discussed in the video? 4 points
Luster, cleavage planes, color, hardness
10.
Which mineral(s) in the video show cleavage, based on the discussion in the video? (4 points)
Muscovite and Potassium Feldspar
11.
What kind of luster does muscovite have? (2 pts)
Vitreous luster
12.
Part of the video shows a photo of the trail to the Mica Mine covered in white rocks. What mineral do you suppose is covering the trail? (2points)
Quartz
13.
What type of rocks are the red and brown rock layers found in Bangs Canyon? (2pts)
a.
Sedimentary rocks
b.
Metamorphic rocks
c.
Igneous intrusive rocks
d.
Mineral rocks
14.
Which mineral found in the Mica Mine is an example of the type of mineral that many sand grains (like those found in beaches and rivers) actually are? (2 points)
Quartz
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