PLEASE ANSWER ALL 1-5 (refer to the picture) 1. Is the rock made of crystal grains? (Does it have a lot of flat, shiny faces- maybe tiny or small- that reflect light like little tiny mirrors) a. The rock is made with crystal grains with flat shiny surfaces b. There ar no (or not many) shiny, flat, crystal grains C. Descriptions are not applicable in the rock sample 2. Does the rock have both layers and crystal grains ?(look carefully four layers specially along the edges of the rock) a. The rock has both layers and crystals b. The rock has crystals, but has no layers C. Descriptions are not applicable in the rock sample 3. Does the rock have layers but no crystal grains? (look carefully four layers specially along the edges of the rock) a. The rock has layers and crystals are not visible b. The rock has no layers and crystals are not visible c. Descriptions are not applicable in the rock sample 4. Do the layers look like ribbons and bands of minerals running through the rock and is the rock kind of blocky? (The bands of minerals may be straight or wavy. The rock breaks blocky chunks not along its layers) a. The rock has crystals, layers that look like ribbons and bands of minerals running through it, and is kind of blocky. b. The rock has crystals and layers that are thin and do not look like ribbons of minerals. It breaks along the layers c. Descriptions are not applicable in the rock sample 5. Can you see crystal grains in most or all of the rock without using a magnifier? a. The rock is coarsed or medium grained, has crystals and no layers b. The rock is fined grained, has crystals, and no layerz c. Descriptions are not applicable in the rock sample

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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Question

PLEASE ANSWER ALL 1-5 (refer to the picture) 1. Is the rock made of crystal grains? (Does it have a lot of flat, shiny faces- maybe tiny or small- that reflect light like little tiny mirrors) a. The rock is made with crystal grains with flat shiny surfaces b. There ar no (or not many) shiny, flat, crystal grains C. Descriptions are not applicable in the rock sample 2. Does the rock have both layers and crystal grains ?(look carefully four layers specially along the edges of the rock) a. The rock has both layers and crystals b. The rock has crystals, but has no layers C. Descriptions are not applicable in the rock sample 3. Does the rock have layers but no crystal grains? (look carefully four layers specially along the edges of the rock) a. The rock has layers and crystals are not visible b. The rock has no layers and crystals are not visible c. Descriptions are not applicable in the rock sample 4. Do the layers look like ribbons and bands of minerals running through the rock and is the rock kind of blocky? (The bands of minerals may be straight or wavy. The rock breaks blocky chunks not along its layers) a. The rock has crystals, layers that look like ribbons and bands of minerals running through it, and is kind of blocky. b. The rock has crystals and layers that are thin and do not look like ribbons of minerals. It breaks along the layers c. Descriptions are not applicable in the rock sample 5. Can you see crystal grains in most or all of the rock without using a magnifier? a. The rock is coarsed or medium grained, has crystals and no layers b. The rock is fined grained, has crystals, and no layerz c. Descriptions are not applicable in the rock sample