Exogenic Fulgurite Oswego, Oswego County, New York. From lighting strike on August 2, 2008, ref. Rocks and Minerals magazine, May/ June 2011 issue, vol. 86, no.3, p. 264-270. Collected by Joeseph, Jonah, Arlo, and Jeffery Shallit. A very fine filament that tappers beautifully at both ends. Black and lustrous. An excellent specimen. 6.5 cm. $185