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Fochaian Fochaian
wrote...
Posts: 3160
8 years ago
What element, when added to quartz, causes the purple color of amethyst?
A) cobalt
B) iron
C) titanium
D) nickel
Textbook 
How Does Earth Work? Physical Geology and the Process of Science

How Does Earth Work? Physical Geology and the Process of Science


Edition: 2nd
Authors:
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GurshGursh
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Top Poster
Posts: 1939
8 years ago
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Fochaian Author
wrote...
8 years ago
Makes total sense now, marking this solved
wrote...
8 years ago
Glad my interpretation was correct, will be around if you need anything else
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