ˈfäzˌjēˌnīt, -_jəˌn- noun
( -s )
Etymology: German phosgenit, from phosgen phosgene + -it -ite
: a mineral Pb 2 Cl 2 CO 2 consisting of lead chloroformate occurring in tetragonal crystals of a white, yellow, or grayish color and adamantine luster (hardness 3, specific gravity 6.0-6.3)