Saturday, February 20, 2016

materialsscienceandengineering: Arsenopyrite and pyrite in...



materialsscienceandengineering:

Arsenopyrite and pyrite in gangue
by Mr. Ivan Jimenez Boone

Characteristic rhombic crystals of arsenopyrite in gangue.

These are pretty. I wish I could make sense of them.



via Tumblr http://bit.ly/1WyHxGc
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