M & W Minerals
Walter R. Kellogg
517 294 6709
mwminerals@comcast.net
Mina Ojuela, Mapimi, Durango, Mexico
(Zn,Fe,Mn)Mn3O7·3H2O
The Chalcophanite is all the dark, shiny, bubbly material. The clear crystals have not been identified.
11.2 x 7.4 x 2.6 cm
$40 Click here to order this mineral.