The salt crystals that we were trying to grow in our experiment attempted to simulate: biomineralization precipitation from solution solid state diffusion hardening from melt
The salt crystals that we were trying to grow in our experiment attempted to simulate: biomineralization precipitation from solution solid state diffusion hardening from melt
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
Related questions
Question
Answer mutiple choice question below
![The salt crystals that we were trying to grow in our experiment attempted to simulate:
biomineralization
precipitation from solution
solid state diffusion
hardening from melt](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fab8a5d84-6bd6-44bd-8cca-2b90704ba9aa%2F00e021f2-7e56-41ab-9413-c1cf60438144%2F02lqs32_processed.png&w=3840&q=75)
Transcribed Image Text:The salt crystals that we were trying to grow in our experiment attempted to simulate:
biomineralization
precipitation from solution
solid state diffusion
hardening from melt
![If you can't scratch a mineral with your fingernail, but the mineral itself won't scratch
glass either, you can assume the hardness of that mineral to be:
between 5.5 and 7
between 3 and 5
between 1 and 3
between a 2 and 6](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fab8a5d84-6bd6-44bd-8cca-2b90704ba9aa%2F00e021f2-7e56-41ab-9413-c1cf60438144%2Fhs8g91r_processed.png&w=3840&q=75)
Transcribed Image Text:If you can't scratch a mineral with your fingernail, but the mineral itself won't scratch
glass either, you can assume the hardness of that mineral to be:
between 5.5 and 7
between 3 and 5
between 1 and 3
between a 2 and 6
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
Step 1: Hardness of minerals
The Mohs mineral hardness scale, which gives different minerals a relative hardness value, is commonly used to measure the hardness of minerals. Friedrich Mohs created the scale in 1812, and its foundation is the idea that a tougher mineral can abrasively erode a softer mineral.
Here are the common minerals and their respective hardness values on the Mohs scale:
- Talc: Hardness of 1 - It can be easily scratched by a fingernail.
- Gypsum: Hardness of 2 - It can be scratched by a fingernail.
- Calcite: Hardness of 3 - It can be scratched by a copper penny.
- Fluorite: Hardness of 4 - It can be scratched by a knife blade.
- Apatite: Hardness of 5 - It can be scratched by a knife blade but not by a penny.
- Orthoclase Feldspar: Hardness of 6 - It can scratch glass.
- Quartz: Hardness of 7 - It can scratch glass.
- Topaz: Hardness of 8 - It can scratch quartz.
- Corundum: Hardness of 9 - It can scratch topaz.
- Diamond: Hardness of 10 - It is the hardest naturally occurring mineral and can scratch all other minerals.
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