"Colophonite" Natural Recordings by Native Speakers
Colophonite is a rare mineral, consisting of a hydrated calcium carbonate, whose general formula is CaCO3·3H2O. It is usually white or colorless, but may also be blue or brown due to impurities. Colophonite is found in sedimentary rocks, typically in conjunction with other minerals such as calcite, aragonite, and gypsum.
Colophonite
Colophony is a term that refers to the resinous sap or gum of the pine tree, particularly the daub or turpentine, which is used in the manufacture of varnishes, paints, and other artistic materials.