Assignment 2 (1)

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School

New Mexico State University *

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1110G

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Geology

Date

Dec 6, 2023

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docx

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Uploaded by DoctorCheetahPerson1995

GEOL 111 Learning Assignment 2 Matter & Minerals 1. Physical properties. Go through each of the scenarios below and determine which physical property is being described: cleavage, hardness, luster, or streak. a. You cannot make a mark on a mineral sample with your fingernail, but you can with a piece of metal. What physical property of the mineral sample are you investigating? Answer: Hardness b. You use a piece of unglazed porcelain and rub the mineral sample across it. What physical property of the mineral sample are you investigating? Answer: Streak c. You take a sample and use a hammer to break it and see that the mineral breaks into the same shapes over and over again. What physical property of the mineral sample are you investigating? Answer: Cleavage d. The sample you have looks like it is oily in appearance. What physical property are you investigating? Answer: Luster 2. What is your birthstone? List 3 things you learned about your birthstone that you didn’t know about before visiting the website. One item must be a physical property of the mineral Birthstone: Zircon [Chemical Formula ZrSiO4] 1. Hardness 7.5 2. Some zircons contain radioactive uranium . 3. Large zircon crystals are rare. 4. The Silicates. Read the Minerals III: The Silicates module then take the Silicate Minerals quiz (tab at top of page). Take a screen shot of your score and paste below.

GEOL 111 Learning Assignment 2 Matter & Minerals 5. Review the information at the Build an Atom website and then play all 4 games until you get at least 3 stars for each . Take a screen shot of your results (stars) and paste below. 6. 5. Imagine that you have been given samples of the minerals listed in the Moh’s Hardness Scale. However, instead of being labeled by name, the samples are labeled only with code letters. Use the following clues and chart of the Moh’s Scale of Hardness to determine the identity of each mineral. Mineral Description Mineral Name 1. Mineral C can be scratched by every other mineral. Talc 2. Mineral D can be scratched only by mineral H. Corundum 3. Mineral F can scratch only mineral C. Gypsum 4. Mineral A scratches minerals E and I but it can be scratched by mineral J. Orthoclase 5. Mineral E can scratch mineral I. Apatite

GEOL 111 Learning Assignment 2 Matter & Minerals Mineral Description Mineral Name 6. Mineral B can scratch mineral F, but it can be scratched by all other minerals. Calcite 7. Mineral H can scratch every other mineral. Diamond 8. Mineral G can be scratched by minerals H and D, it can scratch mineral J. Topaz

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Assignment 2 (1)

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