M & W Minerals
Walter R. Kellogg
517 294 6709
wkellogg@mwminerals.com Latest Updates
Sterling Hill, Sussex co., New Jersey
3.6 x 2.7 x 1.8 cm
Sold
Ex. John Melhase - pre 1938, Ex. California Academy of Sciences, Ex. Steve Pullman
(Zn,Fe,Mn)Mn3O7·3H2O
The specimen is in fairly good condition