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8x natural abundant altered to talc approximate assay associated Au per ton bands belt body bull Calcite Calculated pyrite value California carried chalcopyrite concentration contained continued country rock cubes cubic crystals deposition determination developed diorite Distance Distance above level drift east Easyz Bird estimated degree extent extreme faults feet fissures follows formation Fracturing free gold gold content gold value grains hanging-wall highly altered impregnation inches inclusions indication irregular masses Level Location Magnification massive material metadiorite area mineral mining Mother Lode movement nearly º º occurs original perfect photographs Plate polished sections Position in vein precipitation present principal constituent Pyrite percentage quantities quartz raise range region relatively Remarks Replacement seams shown shows side small amount solutions speci Specimen stope structure surface taken throughout tion trace transparent vary vein system wall-rock walls wide