FMF Minerals Gallery

To access to this FMF post with the image

Calcite, apophyllite
Onion River roadcut, Lutsen Township, Cook County, Minnesota
9 X 7 X 6 cm (approximately)
Two large calcites sort of wrapped around each other, both with a few apophyllites gracing them. A surprising gift from the lavas of Minnesota’s North Shore (Author: John Nash)