J. Bob in Chengdu, China

I am teaching in Chengdu, China on a teacher exchange program between Phoenix Country Day School and the Chengdu Experimental Foreign Languages School.

Thursday, August 17, 2006

Igneous Rocks

These are the rocks formed from cooling magma and lava that I will take to Chengdu. Their mass is 3.3 kg. As Marie Bippus would advise you "read them like a book". The rock names are obsidian, scoria, pumice, basalt, andesite, rhyolite, gabbro, diorite, and granite. The gabbros came from the train tracks near “The Strip” in Pittsburg, the obsidian came from Parks, AZ, and the pumice came from Los Conchas beach in Puerto Penasco, Mexico

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