Meteorite Bronze Mortar and Pestle

FUSION CRUST When a meteor survives its passage through the earth's atmosphere the part of it that strikes the surface is called a meteorite.  All meteorites fall through the atmosphere at such high velocity that some material burns off the exterior. Meteorites that reach the ground have a glassy outer coating called a fusion crust. PATINA WITH ORIGINAL CAST FORM.   Fourth  in the series, Meteorite explores an alternate patina on the original bronze form