TSCHEPvMIGITE, AMMONIOJAROSITE, EPSOMITE, CEL- 

 ESTITE, AND PALIGOHSKITE FROM SOUTHERN UTAH 



By Earl V. Shannon 

 Assistant Curator of Geology, United Stales National Museum 



INTRODUCTION 



During the summer of 1927 Mr. Frank Haj^cock, of Pangiiitch, 

 Utah, sent a lot of specimens to the United States National Museum 

 for identification. These proved of such interest that additional 

 material was requested and Mr. Haycock generously responded by 

 sending a second lot. The minerals recognized were tschermigite, 

 the rare ammonia alum, ammoniojarosite, a new member of the jar- 

 osite group in which ammonium oxide replaces the potash of jar- 

 osite, epsomite, celestite, and a mountain cork or paligorskite. Later 

 another lot of specimens of the associated paligorskite and celestite 

 was sent independently for identification by ^Ir. M. J. Proctor, also 

 of Panguitch. These minerals have all been studied in the Museum 

 laboratory and the results of the examinations are given below. 



OCCURRENCE 



Following preliminary examination of the minerals and their 

 identification, a report was rendered the sender and he was asked to 

 give the locality from which the material came. This was con- 

 sidered desirable before any detailed work was done on the minerals 

 as the associated tschermigite and ammoniojarosite in lignitic shale 

 were identical in appearance with the tschermigite and associated 

 jarosite from Wamsutter, Wyo., described by Erickson ^ and it 

 was thought that they might have been brought from the "Wyoming 

 locality. Mr. Haycock, in his reply, said that, inasmuch as he 

 thought the deposit might have some commercial value, he did not 

 wish to divulge its exact whereabouts until he had an opportunity to 

 file mining claims to cover the occurrence. He assured me, how- 



' K. Theodore Erickson. Tscliermijrite (ammonia alum) from Wyoming. Journ. Wash. 

 Acad. Sci., vol. 12, No. 13, pp. 49-54, 1922. 



No. 2758.— Proceedings U. S. National Museum, Vol. 74. Art. 13. 



5;)2.'i— 28 1 



