. Guide leaflet. f^^.^#. istry, University of Virginia. It was thoughtthat the platinum, along with the nickel, wouldpromise a profitable commercial enterprise. Infact, it was this idea that prompted the min-ing ventures and the explorations which havegiven us so much interesting its composition, it is not surpris-ing to know that the late Dr. George P. Mer-rill, Head Curator of Geology in the U. Museum, and one of the leadingauthorities on Meteorites, stated that CanyonDiablo iron is one of the hardest and toughestof all known meteoric irons. Wtdmanustattian


. Guide leaflet. f^^.^#. istry, University of Virginia. It was thoughtthat the platinum, along with the nickel, wouldpromise a profitable commercial enterprise. Infact, it was this idea that prompted the min-ing ventures and the explorations which havegiven us so much interesting its composition, it is not surpris-ing to know that the late Dr. George P. Mer-rill, Head Curator of Geology in the U. Museum, and one of the leadingauthorities on Meteorites, stated that CanyonDiablo iron is one of the hardest and toughestof all known meteoric irons. Wtdmanustattian Ihies When polished and etched with nitric acid,the Canyon Diablo iron shows definite andpronounced Widmannstattian figures. Theseare the geometrical markings on the polishedsurface which are caused by internal crystal-lization. In this form they are found only inmeteorites. Besides the unoxidized meteoric iron, therehave been found at the Crater many so-calledshale-balls, which are generally rounded orglobular masses o


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901