Monday, December 27, 2010

Re: [Geology2] It's good to learn a new word everyday


You quoted:
> "Andesite is an extrusive igneous, volcanic rock, of intermediate
> composition, with aphanitic to porphyritic texture. In a general sense,
> it is the intermediate type between basalt and dacite....

As I recall, gray colored moon rocks were almost all andesite.

So, which was the new word you learned? :)



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