What you are looking at is a picture of a baryte crystal growing on fluorite; the two minerals have not been cut or polished in any way, it is just the way they naturally are. Fluorite (or fluorspar) is a mineral made out of Calcium and Fluorine while Baryte is literally barium sulfate. It has an orthorombic, cubical symmetry. Absolutely stunning!
Andrei is no scientist, but from an early age, he has been fascinated by science; that's why he went to college, and signed up for Geophysics. Feeling that there's a huge gap between science and average people, he rallied TP, started ZME Science, and gave it a green twist too. 
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Published on Fri, Oct 28, 2011 by Mihai Andrei
Post filled in: GeoPicture