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