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7.Does the rock have gas bubbles (vesicles) in it? (It may look something like a sponge. Look for rounded holes, or glassy bubbles in the rock. They may be tiny like a pinhead, small, or large like a pea).

7.Does the rock have gas bubbles (vesicles) in it? (It may look something like a sponge. Look for rounded holes, or glassy bubbles in the rock. They may be tiny like a pinhead, small, or large like a pea).

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. 7.Does the rock have gas bubbles (vesicles) in it? (It may look something like a sponge. Look for rounded holes, or glassy bubbles in the rock. They may be tiny like a pinhead, small, or large like a pеа). A. The rock has gas bubbles. O B. The rock has no gas bubbles. C. Descriptions are not aplicable in the rock sample. O o o
Transcribed Image Text:STREAK 1 STREAK 2 STREAK 3 Identify your rock smaple based on its physical characteristics using the provided dichotomous keys. 7.Does the rock have gas bubbles (vesicles) in it? (It may look something like a sponge. Look for rounded holes, or glassy bubbles in the rock. They may be tiny like a pinhead, small, or large like a pеа). A. The rock has gas bubbles. O B. The rock has no gas bubbles. C. Descriptions are not aplicable in the rock sample. O o o
8.Is the rock dark colored, glassy, with gas bubbles in it? (Does it have some jagged or sharp points?) O A. The rock is dark colored, glassy, with gas bubbles in it. O B. The rock is gray or black, has a few gas pockets in it, and has no layers. It is not glassy. O C. Descriptions are not aplicable in the rock sample.
Transcribed Image Text:8.Is the rock dark colored, glassy, with gas bubbles in it? (Does it have some jagged or sharp points?) O A. The rock is dark colored, glassy, with gas bubbles in it. O B. The rock is gray or black, has a few gas pockets in it, and has no layers. It is not glassy. O C. Descriptions are not aplicable in the rock sample.
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