516 SCIENTIP^IC RECORD FOR 1882. 



crystalline plates in the lapis lazuli from Siberia. They have a red color, 

 and chemically contain sulphur, zinc, and manganese. Des Cloizeaux, 

 on the basis of an optical examination, regards it as probably a man- 

 ganesian variety of wurtzite. 



Gunnisonite. — A name given by Clarke and Perry to a supposed new 

 mineral from near Gunnison, Colo. The substance examined was mas- 

 sive and had a deep purple color. It contains calcium fluoride, silica, 

 lime, alumina, «S:c., and is probably either an altered or a very impure 

 fluorite. It is not a distinct mineral. 



Hieratite. — According to Cossa, a potassium fluo-silicate. It forms 

 with lamella? of boracic acid stalactitic concretions of a grayish color 

 and generally spongy texture. The concretions contain also selen- sul- 

 phur, arsenic sulphide, and the alums of potassium, caesium, rubidium, 

 and, in small quantities, thallium. From the fumaroles of the crater of 

 Vulcano (Greek name Hiera), one of the Lipari Islands. 



HydroMotite. — A name used by Lewis for a hydrated biotitej also 

 employed, with a slightly different meaning, by Schrauf, in his descrip- 

 tion of the serpentine minerals of Budweis, Southern Bohemia. 



Ilesite. — A hydrous suljihate of manganese chiefly, with also zinc 

 and iron. The mineral occurs in loosely adherent crystalline aggregates, 

 of a white color, and bitter, astringent taste. It is readily soluble in 

 water. Occurs in a siliceous gangue, with sulphides of iron and zinc, 

 in Hall Valley, Park County, Colorado. Named after Dr. M. W. lies, 

 of Leadville. 



Kelyphite. — A gray serpentinous substance coating crystals of pyrope 

 from Kremze, near Budweis, Southern Bohemia. The name is given, 

 but without sufiicient reason, by Schrauf. 



Kenteolite. — A silicate of manganese and lead, occurring in dark 

 reddish-brown crystals. The crystals are minute, and often grouped 

 in sheaf-like forms, resembling stilbite (the name is from the Greek 

 xevrpov, spike). Described by vom Eath and Damour as coming from 

 Southern Chili. 



Keennerite. — A rare telluride of gold from Nagyag, Transylvania ; 

 it contains also a little silver and copper. It occurs in vertically 

 striated prismatic crystals, silver-white to brass-yellow in color, and 

 with brilliant metallic luster. It was first named Bunsenin by Krenner, 

 but afterwards more completely described by vom Eath under the 

 name Krennerite, because the former name already belonged to another 

 species. 



Lautite. — Described by Frenzelas a new mineral containing sulphur, 

 arsenic, copper, and silver; from Lauta, near Marienberg, Saxony. 

 Since shown by Weisbach to be a mixture of metallic arsenic with a 

 mineral related to tcnnantite; the name, consequently, is to be dis- 

 corded. 



Lennilite. — A name given by Schrauf to a substance from Budweis, 

 Bohemia, produced by alteration, which is near the vermiculite of 



