Metamorphic Rocks
Slate with small amounts of iron pyrite from the Tom Boy Mines near Telluride CO. Click here to see a close up of the pyrite. you can clearly see the square shape of the crystal | |
Gneiss from New Mexico | |
Phyllite form Worcester, MA | |
Biotite schist location unknown | |
Gray slate from the Sea to Sky Highway in Vancouver British Columbia, Canada. | |
I'm not sure about the parent rock . but you can clearly see the Gneiss imbedded in the rock. From the Tom Boy Mines near Telluride CO. | |