Note that the elements which are very common in most mineral specimens are not listed here, because they are just too frequently found (such as aluminum, calcium, iron, and all of the non-metals such as sulfur, oxygen, carbon, etc.).
Rockhound, |
is Steve's pro-humanity, pro-space, pro-future blog,
and a forum to discuss his talks at the International Space Development Conference (sponsored by the
National Space Society).
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