3
I'll break it down for you:
White: Alabaster, Aluminum, Alunite, Borax, Calcite, Chalk, Cryolite, Dolomite, Featherwood, Galena, Silver, Limestone, Marble, Marcasite, Periclase, Platinum, Quartzite, Rock salt, Satinspar, Selenite, Stibnite, Talc
Grey: Anhydrite, Bismuthinite, Dacite, Granite, P...