Chaveiro Igneous Is Bliss (Geology Ignorance Is Bliss)

If you love igneous rock and have studied them in detail, you'll enjoy any of these wry geological attitude gifts featuring the classification scheme for igneous rocks on their mineralogy. As you probably know, igneous rock is formed by magma or lava (molten rock) cooling and becoming solid. The diagram features the mineralogical composition of igneous rocks with decreasing silica (SiO2) content. Make others do a double-take with these scientific truism gifts that include the fun-filled saying "Igneous Is Bliss" (a parody on Ignorance Is Bliss)!