Mordenite
Eagle Eye Mine area, Moore Mine group, New Water Mining District, New Water Mountains, La Paz County, Arizona, USA
8.6 x 6.7 x 5.1 cm. Here you have a rich, hand-sized specimen covered with this beautiful zeolite mineral species - and again, from a zeolite find in Arizona I had never seen a specimen of. I had never myself even heard of mordenite, let alone in sharp acicular crystals like this, from Arizona.
© Rob Lavinsky & irocks.com