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Great info, Bass & JimBobNice piece of obsidian there Karen. Take care not to cut yourself. That looks very sharp.Obsidian makes some lovely jewellery. I've used obisidan beads in the past. Lovely! Another related question if you dont mind. I have this rockquite heavy for its size, picked up from a high plateau in Sinai, a once volcanic region many aeons ago.Now someone once told me that this was also volcanic, from slow moving lava, hardened quite slowly hencethat funny, knobbly appearance.Expert opinion as what it is and approx. how old?
Oh, shite, is it a coprolite???
I know that many areas in the Sinai have served as holy sites for many different peoples. If I remember correctly, the oldest standing stones in the world are found there. Are there any of these close to the site you found this rock?
No telling where it came from, then. There is a massive, pure black obsidian flow in Newberry Caldera (Oregon)- some of the pieces I have from there look very similar. Archaeologists have found pieces of Newberry obsidian on the east coast, so it must have been very valuable to the native American tribes- for pieces to have been traded all the way across the country. Makes incredible arrowheads and cutting tools.