| Show colorados Colorado 8 fields of tungsten tungsten Tuu gaten which might well be termed the metal of this decade be baue of its rapid adaptation to a great number of uses besides the familiar ones of an alloy tor for stepi and filaments for electric lamps lampa la Is found in limited quantities in many parts of tile the world but about half of the world a supply cornea from the united states says the october popular mechanics no the greater part of this half balf la Is that corn com ing from the apparently jr almost in exhaustible supply in boulder coun ty colorado the tungsten found in colorado la Is the purest in the world so last la Is it in extent and so abundant and easy to mine that the price of this very valuable metal has pone gone down until it la IS now available for very wide ide commercial use |
