Geologists Happiest People Igneous Is Bliss Two-Tone Coffee Mug
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.
$19.75