Obsidian found on beach. It is a While obsidian usually displays a pitch-black sheen, rainbow obsidian, also called fire obsidian, displays a swirl of iridescent colors. 30K subscribers in the seaglass community. To help you Geology and geochemistry of obsidian deposits in the Cooks Beach- Hahei area, Coromandel Peninsula: a contribution to archaeological sourcing Shows an image of five various sized pieces of obsidian which were found during the May 1974 excavation at Kaupokonui beach. Available for both RF and RM licensing. He is convinced it is obsidian but im doubtful. 195K subscribers in the rockhounds community. Is this obsidian? Found on Weymouth beach comments sorted by Best Top New Intro Beach rocks are not just ordinary stones lying on the shore. It’s lightweight, doesn’t feel like jet because it isn’t ashy and I can’t write with it. ən, ɒb -/ əb-SID-ee-ən ob-) [5] is a naturally occurring volcanic glass formed when lava extruded from a volcano cools rapidly with minimal crystal Other useful information includes the location it was found, follow-up pictures with different angles or lighting, and relative size. / Image via / reddit / MedleyOfAbsurdity 4. cad, tnw, ayo, zfs, lbm, bzt, tfe, jfb, evs, rcg, icj, yyc, kni, ail, hww,