Minerals are typically formed when molten rock, or magma, cools, or by separating out of mineral-rich water, such as that in underground caverns. In general, mineral particles are small ...

Or, better yet, many other ways. After all, the minerals we need aren’t just buried underground. As the basic building blocks ...

A new plan is forthcoming by the end of the year. Original article source: Cool rocks: NASA's Mars rover shows off its rock core collection ...