****************************************** Inquiry regarding obsidian 'Apache tears' ****************************************** From: Tom Hanley <hanley_tom@xxxxxxxxx> We have been given a box of what I think are called "Apache Tears." They are globs of black obsidian that appear to have been imbedded in concentrically banded gray pumice from which they have popped. Does anyone have experience with this interesting structure? The contact between the black obsidian "tear" and the gray enveloping pumice is glassy and distinct. Thanks. Tom Hanley, Prof. of Geology Department of Chemistry and Geology, C.S.U. 4225 University Ave., Columbus, GA 31907-5645 VOX: (706) 568-2075; FAX: (706) 569-3133 See our Departmental home page http://chemgeo.colstate.edu/ Links to the ACRES projects and to Panama photos may be found at: http://chemgeo.ColState.edu/th_hp.htm "Rock Trails in Central Park" co-authored with M.M. Graff, is available for download at http://www.greenswardparks.org ============================================================== To unsubscribe from the volcano list, send the message: signoff volcano to: listserv@xxxxxxx, or write to: volcano-request@xxxxxxxx To contribute to the volcano list, send your message to: volcano@xxxxxxxx Please do not send attachments. ==============================================================
