WHEWELLITE. 

 in Transylvania. It is also found at Herods- 

 foot Mine, near Liskeard in Cornwall ; Jig. 

 455. See Bournoxite. 



Whewellite, Bronke Sf 3IiUer, Dana. 

 An oxalate of lime. Oblique. Twins. Colour- 

 less. Lustre vitreous inclining to adaman- 

 tine. Transparent to opaque. Streak white. 

 Verv brittle. Fracture conchoidal. H. 2-5 

 to2''-75. S.G. 1833. 



Camp. Ca-e-'+H. 



Analysis, by Sandall: 

 Oxalic acid . . . 49-31 



Lime 38'36 



Water 12-33 



100-00 

 Locality. Supposed to be Hungary. 

 Name. After Dr. Whewell, Master of 

 Trinity College, Cambridge. 

 White Antimony, ^ 



pumps. CseeYALENTINITE. 



White Antimony- i 

 ORE, Jameson. J 



White Arsenic. See Arsenolite. 



White Bisulphuret of Iron. See 

 Marcasite. 



White Cobalt, Allan. See Cobaltine. 



White Cobalt Ore, Jameson. See 

 Sjmaltine. 



White Copper, or White Copper- ore, 

 Kirwan, Jameson. See Domeykite, 



White Copperas. See Coquimbite. 



White Garnet op Vesuvius, Kirwan. 

 See Leucite. 



White Gold-ore. A name applied to 

 Native Tellurium in older works on Min- 

 eralogy. 



White Hyacinth of Somma. See 

 Meionite. 



White Iron Pyrites, Phillips. See 

 Marcasite. 



White Lead-ore, Kirwan, Jameson, or 

 White-lead Spar. See Cerusite. 



White Mdndic. See Mispickel. 



White Nickel-pyrites. See Ram- 

 melsbergite. 



White Stone. A name given by lapi- 

 daries to limpid and colourless Rock Crystal 

 •when cut for jewelry. 



White Tellurium. The name given to 

 silver-white (inclining to yellow) varieties 

 of Sylvanite. It occurs in needle-shaped 

 crystals, is soft, and brittle. S.G. 7-99 to 

 8-33. In composition it is a telluride of 

 gold and silver represented by the same 

 formula (Ag Te^ + Au Te'^), as Graphic 

 Tellurium, with which it is probably iden- 

 tical. 



WHITNEYITE. 405 



Analysis, from Nagvag, by Petz : 



Silver .."... 14-68 



Gold 24-89 



Tellurium .... 55-39 



Lead 2-54 



Antimony . . . . 2'50 



100-00 



BB behaves like Foliated Tellurium, ex- 

 cept that it does not give off sulphurous 

 acid. 



Dissolves in nitric acid, leaving a residue 

 of gold. 



White Topaz. The remarkably peculiar 

 crystals found in the Ecklogite of the Sau- 

 Alpe in Carinthia, which have been hitherto 

 referred to Topaz, have been shown by 

 Kenngott to be either imperfect or mis- 

 formed crystals of Quartz. 



White' Vitriol, Allan. See Goslarite. 

 This term, as used in the arts, is applied to 

 sulphate of zinc in a granular state, pro- 

 duced by agitating the melted mass during 

 the process of cooling. 



" The salt is prepared on the large scale 

 by roasting ores containing sulphide of zinc, 

 afterwards exhausting them with water, 

 and evaporating the solution to the crys- 

 tallizing point. By fusion in its own water 

 of crystallization, slirring in wooden troughs 

 with wooden shovels till crystallization 

 takes place, and subsequent pressing in 

 boxes, commercial zinc-vitriol is made to 

 assume the appearance of loaf-sugar." — 

 Gmelin. 



Whitneyite, F. a. Genth. Occurs mas- 

 sive, with a crystalline or finely granular 

 structure. Colour reddish-white, or like 

 that of an alloy of equal parts of copper and 

 silver. Lustre metallic. Somewhat malle- 

 able. Takes a high polish, but soon tar- 

 nishes ; sometimes iridescent. H. 35. S.G. 

 8-408. 



Camp. Cui^As, or cooper 88-37, arsenic 

 1163 = 100. 



nalysis, by Genth : 



Copper 



Arsenic 



Silver and insoluble . 



. 88-19 

 . 11-41 



. 47 



100-07 



BB fuses readily, and gives off the odour 

 of arsenic. 



Insoluble in muriatic acid. Soluble in 

 nitric acid. 



Localities. Occurs coated with Red Copper 

 and a copper salt resulting from its oxida- 

 tion. A boulder 401b. in weight has been 

 ddS 



