Arizona republican., 1908-11-14
THE MINING
 DEPARTMENT Display Representing APizo-
 mas Greatest Industry BUILDING FULL OF WONDERS Thousands Interesting Speci- mems Concerning Which This Cursory Description is ButMerestHint--ShouldNo Not Fail to See This Display.
BUILDING FULL OF WONDERS

The mineral building has been one of the centers of attraction since the opening of the fair, not only to min ing men and investors, but to the curious public A large number of visitors have not only visited the mining building but have viewed and studied the exhibits with interest Col. E. Randolph of Tucson is superin- tendent of the mining department and J. c. Goodwin of Tempe is general manager. There are now to be seen at the mining building ores and min erals representing nearly all kinds of ores and minerals that are found anywhere on earth.
 The display of various ores and minerals of copper is as nearly com plete as could be found in any ex- hibit hall or museum in this cOun- try. There have been great many exhibits from the various coun- ties added to the permanent exhibits. Much new shelving has been added and most of the shelving is now occupied by exhibits. The Copper Queen has a fine exhibit of ores in hexagonal case. This case is over ten feet high, occupying the center of the room. Here are seen all the various characters of ore found in the Copper Queen. This exhibit is not only attractive, but is also of edu- cational interest to those who wish to study the kinds of ore from the surface down to a depth of over 1900 feet. The last addition to this collection was a fine piece of ore from the 1900 foot level--a light cream color gangue stained with blue and green carbonates of copper.
 The Bonanza Circle has a fine case of ore. The mines of this group join the Copper Queen, one of the most noted mines being the Calu- met & Arizona. The ores occur in the same condition and the minerals are of the same character as found in the Copper Queen. The Calumet X Arizona offered to the mining de- partment money enough to build a valuable case for it's ores, but it was not accepted at the time as the time W ciN tbp SAibA Np bh4ih anu AlloAclli ilAt case
 Another specimen of handsome car bOnate of copper ore was sent from the Dos Cabezos mining district by the Centurion Arizona Mining com pany. Several other nice exhibits were sent from the same district by the Mascot Copper company.
 Coconino Countv-W w. Bass on of the most earnest and ardent work CTS in the cause of the mineral in dustry of Arizona, brought to the mineral department a very interesting exhibit of asbestos, and also some very rich exhibits of copper ore. all from the Grand Canyon of the Colo rado. Mir. Bass has stood by the case containing the asbestos and enlighten- ed the public as to what asbestos is, the use that is made of it, and the value of the ore The people take much interest and ask many ques- tions, which he always answers in a very pleasing manner. The kind of asbestos he shows is chrysotile. one of the most valuable kinds found As the most of the asbestos that is used in the United States today comes from Canada, it is hoped that in the near future we may be supplying our selves and adding to the wealth of the territory by producing this mineral from the mines of the Grand Canyon. The ores of copper that MT. Bass has on exhibition are all very high grade, known as glance And we hope some day to see the Grand Canyon producing asbestos and in, as scenery.
 Gila County-J. w. Read of Drip ping Springs placed on exhibition nice display of copper ores. Similar ore also was received from the Gib- son Mining company and the Apache group near Globe. The Black Warrior Copper company gave to the exhibit a beautiful lot of chriscola ores. The Gibson Copper company's case is al ways viewed with much interest by the public.
 Maricopa county has a very credit able display of gold, silver, copper and lead ores. There have been added to her permanent exhibit ores from the Arizona Gold and Copper Hill Mining company of which l.. L. Plank is president and manager. This ore is sulphide of copper, asso- ciated with quartz, carrying gold values. The copper ores and the conditions under which they are found resemble somewhat the United Verde copper mines ores, or the Gib- son Copper company's ores, as the formation is in schist and the ore occurs in zones running through the schist, of what is known as talco or schist. His exhibit is a very handsome one and well worthy | of study by mining men and invest | OTIS, and as the copper ores are deep | seated mineral. we believe that Mar icopa county may yet become a great | producer of copper.
 The Slocum Copper company is another company owning mines in a similar formation and ores of simi- [