Arizona republican., 1915-07-11

l capitalists offered them $200,000 in cash and $100,0O0 within q year for | the mine. only to be told that the | property is not for sale at any price.-From Daily Mining Record" | Tungsten
 Numerous articles on this metal have l appeared in these columns and the fol- l lowing facts regarding it has been in | cluded in some of them. However. the
 following will be interesting as con 1 taining many facts not generally | known:
 | Tungsten was discovered in 17S1 by 1 1D'Elhuyart. The name tungsten" was 1 first applied to the mineral by the 1 Danes and Swedes who mined a low | grade substance for many years. They | gave it the name of heavy rock or 1 heavy stone" tung" meaning heavy and "sten" meaning stone in their language.
 Tungsten (w. O-S) was first made known to modern science by an inquis- ! itive individual who was anxious to
 know why the steel in the Damascus 1 sword was superior to that used in the l swordS-of his own day. Accordingly he
 took blade that had been handed | yzed the steel of which it was made. He | made the rare discovery that the iron
 mines from which the material had been taken and which was used in the
 construction of the Damascus blade for
 centuries. contained an alloy which has
 no superior in the manufacture of the
 toughest. self -tempering steel And
 this substance was destined to be called tungsten.
 Steel itself is an alloy, but when
 combined with tungsten it then be-
 comes the toughest and almost inde- | structihle material. which is widely | used for fine edged tools and other parts of machinery that require great | strains. IL is also used in the manufac- ! ture of filaments for incandescent light globes. and sometimes in armor plates. Its great expense precludes 1t
 from the manufacture of cheaper l grades of steel
 Before strong demand for tungsten
 was necessary it was used in but small ! quantities and was found in various
 parts of the globe. Norway supplied
 low grade product. and some was | brought to Europe from Australia. be- | ing ~scd as ballast.
 | Tungsten in the metallic state is one 1 Of the rare clements. occurring neither in nature nor the arts. It is prepared. | however. as a curiosity by reducing the i trioXice Cw- O. B with hydrogen in a I platinum tube at high temperature
 As thus obtained it forms resplendent, l tin white or gray plates, or q dull black powder, similar to hydrogen-re- 1 duced iron. Its specific gravity is | l9.l29, and its hardness ranges from ! to 6. Unalterable in ordinary air: act ed upon bv oxygen and chlorine only at a high temperature. and is not af- ! fected by hydrochloric or sulphuric
 acids Nitric acid attacks it slowly, and aqua regia readily with the forma- tion of the trioxide. ". O. s.
 Impure tungsten is prepared indus
 triaily for use in making tungsten steel. Tungstate of soda is employed as a
 mordant in dying cloth, and for the
 impregnation of vegetable tissues. lin- 1 en and cotton, to render them non-in- 1 flammable.
 | Tungsten raises the melting point of
 irOn-however alloys with more than 70 per cent of 1t are seldom made.
 There are also tunGstate of mag
 nesia, lime. and numerous other. all<a | loids, which, when in combination with
 other chemicals, produce many colte-s | so that one can not judge by the color l-ef the ore. Tungstatc of iron has a
 black color; tungstate of soda or mag | ncsia has an ashy gray color. and so
 on through many colors orange green l purple etc.
 Through a small hand glass the cry | Stals are small and sharp pointed 1 There are no flat faces in the fracture
 Tungsten is produced in several l counties in Arizona. Pima county pro
 duces some of the ores of tungsten | Maricopa county produces some in the
 form of supro- o-tunEstate This ore is ! not only very attractive and interesting 1 to look at but it very high in it's cop ! per 1nG tungsten contents and carrying . in addition a value of gold and silver
 and some vanadium. very excellent ] product is also obtained from Maheve ] county mainly in the form of tungsten. | The oldest and most productive
 area in Arizona is the Dragons in Co., chise county. This district has pro- duced for a number of years. The first production was from the placers and ! latcr from the veins.
 Shipments made to the Primas Chemical company. Primas. Pa, some l shipments are made to other points l The high price and great demand has | created a ready sale and an effort to work all the localities to their full ca
 pacity.
 Shannon Copper
 shannon received an average of fAr ftg in