Ad: Geologists Happiest People Igneous Is Bliss T-Shirt
Geologists will enjoy any of these gifts featuring the following saying that will make others do a double-take on why geologists are amongst the happiest people: "Geologists Are Among The World's Happiest People Because Igneous Is Bliss". Featuring graph / chart with different types of igneous rock according to silica content. myTees
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