Last Modified: 2011-07-06
Related Textbooks:Earth: An Introduction to Physical Geology (10th Edition)
Related Textbooks:Exploring Geology
- hydrogen and helium were the only elements formed in The Big Bang
- elements up to Iron [atomic number 26 (carbon, oxygen, etc.)] were/are formed during nuclear fusion in stars
- only atoms as large as Iron can be made with stars; anything larger (copper, zinc, etc.) is only produced during supernovae
- the most abundant element in the crust is oxygen; second is silica
- naturally occurring
- definite chemical composition
- characteristic crystal structure
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