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15 17 19 21 20 22 16 18

15 17 19 21 20 22 16 18

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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What are the names of these 6 minerals and what is there texture,

The image displays a collection of geological rock samples, each labeled with a number to indicate different types. Here’s a detailed description of each sample as it would appear on an educational website: 1. **Sample 15**: A dark, slate-like rock with a smooth texture. It appears to have a layered structure. 2. **Sample 16**: A lighter colored rock with a rough, grainy texture. The surface shows visible crystal formations. 3. **Sample 17**: A black, glassy rock with a conchoidal fracture, indicating it might be volcanic glass or obsidian. 4. **Sample 18**: A dark, matte rock with a rough surface and irregular shape, possibly a type of coal or shale. 5. **Sample 19**: Another dark rock, featuring a shiny, reflective surface and fracturing that suggests it could be a metamorphic rock like anthracite. 6. **Sample 20**: A light-colored rock, with a smooth surface and fine grain, likely indicating a sedimentary type like limestone or sandstone. 7. **Sample 21**: A sandy-colored rock with a coarse texture, possibly indicative of sandstone. 8. **Sample 22**: Another rock with a sandy hue, displaying a gritty surface, which could be sandstone or a similar sedimentary type. These samples illustrate a variety of geological formations, showcasing differences in color, texture, and surface characteristics that are key in identifying rock types in educational settings.
Transcribed Image Text:The image displays a collection of geological rock samples, each labeled with a number to indicate different types. Here’s a detailed description of each sample as it would appear on an educational website: 1. **Sample 15**: A dark, slate-like rock with a smooth texture. It appears to have a layered structure. 2. **Sample 16**: A lighter colored rock with a rough, grainy texture. The surface shows visible crystal formations. 3. **Sample 17**: A black, glassy rock with a conchoidal fracture, indicating it might be volcanic glass or obsidian. 4. **Sample 18**: A dark, matte rock with a rough surface and irregular shape, possibly a type of coal or shale. 5. **Sample 19**: Another dark rock, featuring a shiny, reflective surface and fracturing that suggests it could be a metamorphic rock like anthracite. 6. **Sample 20**: A light-colored rock, with a smooth surface and fine grain, likely indicating a sedimentary type like limestone or sandstone. 7. **Sample 21**: A sandy-colored rock with a coarse texture, possibly indicative of sandstone. 8. **Sample 22**: Another rock with a sandy hue, displaying a gritty surface, which could be sandstone or a similar sedimentary type. These samples illustrate a variety of geological formations, showcasing differences in color, texture, and surface characteristics that are key in identifying rock types in educational settings.
Expert Solution
Step 1: I will explain sample number 16 18 20

16 - Travertine

Texture- Voggy, concentric or botyoidal texture

18- Seems like bauxite 

Texture - Pisolitic, oolitic or nodular. It depends upon the formation and weather condition

20- Quartz 

Texture - Glassy, granular or fibrous. These textures depend upon the weather conditions and formation. 

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What are the names of these minerals and what is there texture, please 

This image displays a collection of geological specimens, each labeled with a number for educational identification. 1. **Sample 23**: A light brown, porous rock with a rough texture, potentially a type of sedimentary rock. 2. **Sample 24**: A pale, smooth rock with a somewhat chalky appearance, possibly a limestone or similar sedimentary rock. 3. **Sample 25**: A grayish rock with a prominent angular break, indicating crystalline or granitic structure. 4. **Sample 26**: A flat, brownish-gray rock with a finer texture, which may be sandstone or a similar sedimentary form. 5. **Sample 27**: A speckled, coarse-grained rock, likely granite or another intrusive igneous rock due to its mineral visibility. 6. **Sample 28**: A dark, dense rock with a solid appearance, possibly basalt or another volcanic igneous rock. 7. **Sample 29**: A flat, layered rock with a metallic sheen, suggesting it could be a metamorphic rock like schist. 8. **Sample 30**: A rough, reddish-brown rock, possibly indicating features of a metamorphic rock like phyllite. These samples illustrate a variety of rock types, showcasing different textures, colors, and geological characteristics for educational study.
Transcribed Image Text:This image displays a collection of geological specimens, each labeled with a number for educational identification. 1. **Sample 23**: A light brown, porous rock with a rough texture, potentially a type of sedimentary rock. 2. **Sample 24**: A pale, smooth rock with a somewhat chalky appearance, possibly a limestone or similar sedimentary rock. 3. **Sample 25**: A grayish rock with a prominent angular break, indicating crystalline or granitic structure. 4. **Sample 26**: A flat, brownish-gray rock with a finer texture, which may be sandstone or a similar sedimentary form. 5. **Sample 27**: A speckled, coarse-grained rock, likely granite or another intrusive igneous rock due to its mineral visibility. 6. **Sample 28**: A dark, dense rock with a solid appearance, possibly basalt or another volcanic igneous rock. 7. **Sample 29**: A flat, layered rock with a metallic sheen, suggesting it could be a metamorphic rock like schist. 8. **Sample 30**: A rough, reddish-brown rock, possibly indicating features of a metamorphic rock like phyllite. These samples illustrate a variety of rock types, showcasing different textures, colors, and geological characteristics for educational study.
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