Mineral Specimen #850 Datolite in Basalt with Microcline
Flint Steel Mine, Ontonagon County, Michigan, USA
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.