noun Any fossil wood which exhibits traces of having belonged to the pine family.
noun A sweet white crystalline substance extracted from the gum of a species of pine (Pinus lambertiana, sugar pine), isomeric with quercite.
noun A compact granular cryptocrystalline mineral of a dull grayish or greenish white color. It is a hydrous alkaline silicate, and is derived from the alteration of other minerals, such as iolite.