NJDEP - NJGS - First Annual Report of the Geological Survey of the ...

35rr The t'ourth' deposit) forty-five feet from' the third, is frordfour to five feet in width) and has been worked to the d@th ofsixty-five feet..About a quarter of a mile southwest of the WawayandaMine, on the property of Mr. Green, openings have been madeinto the third and fourth deposits, from which a large quantityof ore has been taken. All these deposits are exceedingly irregular,having no well defined walls. They occur betweentwo strata of gneiss of (tifferent characters. The underlyingstratum is generally a very hard and crystalline syenitlc gneiss ;the overhanging is chiefly composed of feldspar and quartz ; theformer in large imperfect crystals and greatly'predominating.They are frequently displaced and altered by dikes of granite)which in some cases arc injected into the deposit, and inothers) cut it off entirely and throw it aside. Numeroussketches and sections illustrating the dislocations have beentaken, and will accompany the detailed 'description of thismine in the final report I together with the composition of theores, metallurgy, etc.The ore from th_s mine is of an excellent quality, a large.proportion of it being entirely free from foreign substances., It=is highly magnetic, and possesses polarity. Iron pyrites some,.times occurs in very small quantities at the junction of thedikes and orej which renders them easy of scparation. It is,elfiefly smelted in a charcoal furnace upon the borders ofWawayanda Lake) and produces an iron peculiarly adapted to,the manufacture of car wheels. Almost all of it is consumedby Whitney & Son, of Phi!_.delphia, for this purpose. Themine and furnace are owned by Oliver Ames & Sons, of Boston,who commenced operations here about nine years .ago.Until January last the work had been suspended',for about.four yearn, and since this time has been cr/rricd on.with greatactivity.t_ollowing the course of the Wawayauda Mountain towardathe southwest, indications of the existence of magnetic ironore are every where visible. In some places it is dlsseminatedin grains through the rock) formingone of its constituent min-NEW JERSEY GEOLOGICAL SURVEY