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5.Can you see crystal grains in most or all of the rock without using a magnifier?

5.Can you see crystal grains in most or all of the rock without using a magnifier?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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STREAK 1 STREAK 2 STREAK 3 Identify your rock smaple based on its physical characteristics using the provided dichotomous keys. 5.Can you see crystal grains in most or all of the rock without using a magnifier? O A. The rock is coarse or medium grained, has crystals, and no layers. B. The rock is fine grained, has crystals, and no layers. C. Descriptions are not aplicable in the rock sample.
Transcribed Image Text:STREAK 1 STREAK 2 STREAK 3 Identify your rock smaple based on its physical characteristics using the provided dichotomous keys. 5.Can you see crystal grains in most or all of the rock without using a magnifier? O A. The rock is coarse or medium grained, has crystals, and no layers. B. The rock is fine grained, has crystals, and no layers. C. Descriptions are not aplicable in the rock sample.
6.Is the rock coarse grained? (If the rock is coarse grained, most of the rock is primarily made of crystals that are as large, or larger, than a grain of rice. If you can see the crystals without a magnifier, but they are smaller than a grain of rice, the rock is medium grained.) O A. The rock is made of coarse crystal grains. It has no layers, and is dark colored. B. The rock is made of medium crystal grains. It has no layers, and is dark colored. C. Descriptions are not aplicable in the rock sample.
Transcribed Image Text:6.Is the rock coarse grained? (If the rock is coarse grained, most of the rock is primarily made of crystals that are as large, or larger, than a grain of rice. If you can see the crystals without a magnifier, but they are smaller than a grain of rice, the rock is medium grained.) O A. The rock is made of coarse crystal grains. It has no layers, and is dark colored. B. The rock is made of medium crystal grains. It has no layers, and is dark colored. C. Descriptions are not aplicable in the rock sample.
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