Pyrite concretion No. 04 on the base of the gabbro 4,5x4,5. The miraculous sculpture. Pyrite has the property of giving sparks when struck, for which it received its name: in Greek "pyrites lithos" - a stone, Viscusi fire. Almost 200 years ago, pyrite and chert, or flint has been, was almost the only "matches" people.
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