M & W Minerals
Walter R. Kellogg
517 294 6709
mwminerals@comcast.net
Systematic Galleries
Native Elements
Oxides & Hydroxides
Sulfides
Carbonates
Halides
Phosphates
Sulfates
Borates and Hydrocarbons
Sorosilicates
Nesosilicates
Inosilicates
Tectosilicates
Cyclosilicates
Phyllosilicates
Wulfenite on Mottramite from the 79 Mine, Hayden, Gila Co., Arizona