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Dead Sea Rock - I collected this rock from the Dead Sea at Ein Gedi, in 1976. It has the pitted appearance of igenous lava rock, but it is not at all brittle. In fact, it is surprisingly hard, so that even the tiny villi-like fingers haven't broken off over the years. I strongly suspect it is travertine, else some heavily calcified "marlstone," a mixture of mudstone, calcite and aragonite. Photo by Michael Marcotte Return to List Back to Michael's Hobbies page Back to Michael Marcotte's HomePage