M & W Minerals
Walter R. Kellogg
517 294 6709
Flint Steel Mine, Ontonagon County, Michigan, USA
4.7 x 4.2 x 0.7 cm
$30 Click here to order this mineral.
There are several nodules of Datolite in this specimen. The largest, has good orange/red color composed of myriad small spots. There are veins of red Microcline. Under a loupe, both Epidote and Pumpellyite can be detected.