Goethite
Mine Ledge, Surry, Cheshire County, New Hampshire, USA
8.4 x 6.4 x 5.3 cm. Lustrous, bubbly, dark gray goethite covers the yellow-brown and dark brown fibrous, banded goethite over the mineralized core on this showy and rich specimen from this classic New Hampshire locale. Ex. Bob Trimingham Collection.
© Rob Lavinsky & irocks.com