Wednesday, February 25, 2015

Petrology-the great debate!

So this semester I am teaching petrology lab. As a sedimentologist this is slightly terrifying but as a geochemist, I'm excited! However, there is one thing both sides agree on:

Sanidine vs. Plagioclase.

My students have their first lab practical this week and its on volcanic rocks. I can help them identify almost every mineral they have seen in thin section except sanidine, for which I have apologized profusely and assured them it gets easier from here.

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