Augite var. Jeffersonite
John Betts - Fine Minerals
Several interconnected doubly terminated green-black Jeffersonite crystals with no matrix attached. The crystals formed simultaneously with the surrounding matrix resulting in dissolved surfaces. Ex. Chas. W. Velte Jr. (1914-1987) collection #662.
Franklin Mining District, Sussex County, New Jersey
5 x 4 x 2.5 cm.