Graphite Cuboids from Egan Chute, Ontario, Canada 1-mm cuboids of graphite, associated with spheroidal graphite, in albite. The cuboid morphology is an influence of the albite matrix on the graphite aggregates. Amygaloidal Graphite from the Oshirabetsu mine, Hiroo, Hokkaido, Japan Graphite amygdals in gabbro. John A. Jaszczak collection and photos. Eudialyte occurrence, Kipawa Complex, Quebec Graphite spheres to 1 mm in agrellite.
Spheres also occur in associated eudialyte and albite.
John A. Jaszczak collection and photos. Mont Saint-Hilaire, Quebec, Canada. Flat, Fibrous and Spherical. G.D. Mendenhall, A. Greenberg, and J.F. Liebman, editors. On the natural occurrence of spherical graphite.