Lab 3 Mineral Properties and Minerals Online Supplement (1) (1)
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University Of Georgia *
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1121L
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Geology
Date
Apr 3, 2024
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docx
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Uploaded by SuperHedgehogPerson445
Lab 3 Spring 2024
Lab 3: Mineral Properties and Minerals Online Supplement
Student Name: Nicole Maxey
(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. 1: knew the study of rocks/rock formation was part of geology and studying geology. 2: I knew geology included some more geological stuff and study of things like the study of water.
2.
List and briefly describe two things mentioned in the video you may not
have thought were part of geology from your prior experience.
1. The intermingling of so many types of sciences (chemistry, geology, physics, engineering, biology, math, geography, anthropology, and archaeology.)
2. You can go into politics based off of geology to work on policy around the environment
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, that has a crystalline structure and a definite composition. 4.
Is ice in a glacier a mineral? 2 pts Yes, ice in a glacier is a mineral, water is not, but ice is.
Lab 3 Spring 2024
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) Samples of the same mineral can be different colors because color variations occur when small amounts of certain elements that aren't common to the mineral are 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: Choice 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, that energy can be released with a little packet of energy and that energy may be (fluorescing) light.
Lab 3 Spring 2024
“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
White quartz, Mica (Muscovite), feldspar (potassium feldspar), granite(pegmatite), and tourmaline
9.
What physical characteristics of minerals (as named in the Powerpoint Slides) are discussed in the video? 4 points
Hardness, cleavage, crystal, color, and Luster
10.
Which mineral(s) in the video show cleavage, based on the discussion in the video? (4 points)
Feldspar and Mica (Muscovite)
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) White 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 grains are sand grains
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