Show SOME INTERESTING FACTS ON TUNGSTEN MINING The demand for tungsten ores and prod products product products during the first frt nine months of 19 was much greater gater than that of 1906 19 prices were high mining and prospecting were both actively carried on and ad as a a a result resul the output of f the United States was wa in increased Increased increased creased from a total of 92 short tons of concentrates carrying 00 GO 0 per cent of tung tungsten tungsten tungsten sten trioxide in 1906 to 1640 short short tons In 1907 while the value rose from in inthe Inthe inthe the earlier to O in 1 the later year The principal tungsten minerals are a of iron and man manganese mannese manganese nese and scheelite a a of cal cat calcium calcium clum Both minerals mineras like tin tn ores ore occur rocks as a rule In quartz veins cutting containing much silica such as granite ganie and rhyolite but some apparent exceptions exceptions to this rule uie are ar found as ns for In Instance Instance instance stance tons In New Mexico where and a small smal amount of scheelite occur with pyrite and lead minerals In I a vein cutting limestone and at Some Nome Alaska where scheelite Is found in the gold cold pla placers placer placers cers In a region of several miles mUes from the nearest granite ganie outcrops The greater part of ot the American tung tungsten tungsten tungsten sten product in 1907 10 came from the mines in Boulder county count Colorado which re reported re reported reported ported an output of of 1146 tons of wolfram ite Ie valued value at In California Caloria which was the second state In order of production the te output was wa in the form of scheelite E as was also most of that from Montana Montara The total scheelite chelte reported was wa 41 short tons Small Smal amounts amount of or tungsten ores ore were also produced produce in Washington Nevada Arizona and probably probably ably ab in New ew Mexico No ore is known knon to have been ben produced in South Dakota al ai although although though much prospecting and some devel development development development work was w carried on In other countries besides beside the United nite States the production of tungsten tun ten was notably increased during 1907 The output of Australia including Tasmania amounting to 1643 tons was however the only one that exceeded that of this country countr Reports Report of ot production from South Africa New South Wales Vales and the north northern northern ern em territory of Australia show marked marke increases Spain Span New Zealand Australia and Germany whose combined production during 1906 19 was 46 short tons have not made public their figures of ot production for 1907 Ii but It seems probable that there will wi be in each case an Increase Concerning the probable future of tung tungsten tungsten tungsten sten F L Hess of the United States geo gee logical survey sune from whose statistical re report report report port for 1907 the foregoing paragraphs have been een abstracted makes the following statements statement Tungsten deposits are ae usually thatIs thatIs the ores occur in masses mases or in veins eins Those occurring o at atthe atthe atthe the surface are often quickly and easily ely mined mired and aId It may then ten require all al the profits made from the ore are body ody boy to locate another one However However the veins carrying tungsten minerals mineral are ae gen germ generally emIly erly of origin orgin and generally general speaking other ore bodies bodIe will wi probably be found in depth although as a in mining for other othel minerals the expense of search may maybe maybe maybe be out of proportion to then the size of the pay shoots shoot In Queensland the deposits deposit exposed on the surface have been ben exploited expose and the production has tas in the face of rising prices fallen falen greatly since 1905 19 In Eng England England land and Spain Portugal Austria Germany Bolivia and the Dutch East Indies tung tungsten tungsten sten and tin tn ores occur together and the working costs cost are thus lowered lowered Magnetic separators separator are increasing the production of tungsten ores in England Tungsten Is of ot widespread occurrence but the th Individual deposits can c hardly hard be said sid to be large In times time of high prices there are many deposits which can ca be worked that will wi be idle at lower lowr prices price and considering the great decrease In value of tungsten ores in the last lat three months of 1907 1917 11 it seems probable that the output for tor 1908 will ul be much less than in inthe the previous year yeat An interesting and important part of 01 I Mr Hess report Is his brief bret description of the tungsten minerals and some simple I tests ests test by b which they may be identified These Thee tests test are such as a can be made by any prospector who can obtain hydro hydrochloric hydrochloric acid a a a test tube a tea teacup teacup teacup cup or a water glass and a little Itte tin tn foil foila foi a piece of zinc a bit of ot solder or even a scrap cr from an ordinary tin tn can cai Copies of ot the report rePort which is published as an ap al advance chapter from Mineral Resources x of t the United Unite States Calendar Year 1907 may be obtained by applying to the Director Director tor of the United States Geological Sum Sur Survey vey Washington D C |