2012, ISBN: 1236357833

[EAN: 9781236357830], Neubuch, [PU: Not Avail, United States], Brand New Book ***** Print on Demand *****.This historic book may have numerous typos and missing text. Purchasers can downl… Plus…

[EAN: 9781236357830], Neubuch, [PU: Not Avail, United States], Brand New Book ***** Print on Demand *****.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1899 Excerpt: . mine was opened. In the same wall were found sphalerite and chalcopyrite, by the oxidation of which the mineral was no doubt produced. As these minerals occur throughout the district, the substance here described may be found in any of the mines of the region. The properties of Cupro-Goslarite are as follows: Translucent; light greenish-blue in color; hardness, 2; luster, vitreous; brittle. It is almost completely soluble in cold water. On exposure to the air loses a part of its water and becomes white. Before the blowpipe fuses readily to a black non-magnetic mass, the flame being colored green. As a comparatively large amount of copper was indicated by a qualitative chemical examination, it was thought desirable to make a complete quantitative analysis of it. Zinc sulphate, SnSO4.7H2O, loses six molecules of water at ioo"C and the seventh at 260"C. As it is difficult to obtain perfectly anhydrous zinc sulphate without driving off a part of the acid, the substance under examination was held at a temperature of iooC for three hours. The total amount of water as given below was calculated by assuming that one molecule of water was retained at this temperature. Copper, zinc and iron were determined by well known methods and calculated as oxids and sulphates. The analysis is as follows: Published with the consent of the Director ot the University Geological Survey of Kansas. (105) KAn. EnIV. QUah., VOL. VIII, nO. 2. aPB., 1899. SEhIES a, The only other goslarite containing copper known to the writer is one from the Gagnon mine, Butte, Montana. The analysis by Hildebrand is as follows: ZnO-(27.56); CuO 0.12; (Mn, Fe)Oo.3o; SO, =28.09; HLO--43.93; total--100.00. Mineralogical Laboratory, University of Kansas. April 12, 1899. Quoted by Ccarco. Proc. Col.<

ISBN: 9781236357830

Kansas University quarterly Volume 8 University of Kansas, Books, History, Kansas University quarterly Volume 8 Books>History