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GIA Diamonds and Diamond Grading: Assignment 3 Questionnaire
- Exam (elaborations) • 3 pages • 2024
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How are igneous rocks formed? 
A. In gas 
B. By erosion 
C. From a molten state 
D. By heat and pressure - C. From a molten state 
How can crustal diamonds form? 
A. Oceanic subduction 
B. Volcanic eruptions 
C. Meteorite impacts 
D. Radiation decay - C. Meteorite impacts 
How does metasomatism affect lithospheric diamond formation? 
A. Supplies heat 
B. Transports rock 
C. Removes oxygen 
D. Provides hydrogen - C. Removes oxygen 
What are the rock types where most diamonds form? 
A. Basaltic cr...
-
GIA Diamonds and Diamond Grading: Assignment 3 Questionnaire
- Exam (elaborations) • 3 pages • 2024
-
- $7.99
- + learn more
How are igneous rocks formed? 
A. In gas 
B. By erosion 
C. From a molten state 
D. By heat and pressure - C. From a molten state 
How can crustal diamonds form? 
A. Oceanic subduction 
B. Volcanic eruptions 
C. Meteorite impacts 
D. Radiation decay - C. Meteorite impacts 
How does metasomatism affect lithospheric diamond formation? 
A. Supplies heat 
B. Transports rock 
C. Removes oxygen 
D. Provides hydrogen - C. Removes oxygen 
What are the rock types where most diamonds form? 
A. Basaltic cr...
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