ZINCKENITE. 



Dissolves without effervescence in nitric 

 acid. 



Localities. "New Jersev, at Stirling Hill, 

 Sussex CO., with Franklinite and Calc Spar ; 

 also at Franklin. "At the zinc-smelting 

 works at Filisur, in the Grisons, there are 

 found sublimed in the upper part of the 

 crucibles, in which the zinc is melted, 

 amber-coloured, transparent, hard, shining, 

 six-sided prisms, Avhich have a density of 

 6*0, yield a white powder, becoming yellow 

 when heated, and consist of zinc-oxide 

 with a trace of sulphide." — (Z-. Gmelin, 

 vol. V. p. 10.) 



ZiNCKENITE, Nicol. See ZlNKENITE. 



ZiNKAESENiAT, Otto Kottig. See Kot- 



TIGITE. 



ZiNKBLENDE, Hausmann. See Blende. 



ZiNKBLuTHE. See Zinc Bloom. 



Zinkenite, G. Rose, Dana, Phillips. 

 Ehombic. Occurs in regular six- sided prisms, 

 terminated by low six-sided pyramids. The 

 faces of the prisms are generally deeply 

 striated longitudinally, while those of the 

 pyramids are uneven, but not furrowed. 

 Colour steel-grey. Opaque. Lustre bright- 

 metallic. Streak same as the colour. Frac- 



Fig. 471. 



ture somewhat uneven. H. 3 to 3*5. S.G. 

 5-3 to 5-35. 



Camp. Sulphantimonite of lead, or Pb S 

 + Sb S3=antimony 43-43, lead 35-02, sul- 

 phur 21-55 ; or sulphide of lead 40-4, sul- 

 phide of antimony 59-6 = 100. 



Anahjsis, from Wolfsberg Mine, by H. 

 Rose : 



Antimony .... 44-39 

 Lead . . . . . 31-84 

 Sulphur ..... 22-58 

 Copper 0-42 



99-23 



BB decrepitates strongly. On charcoal 

 melts as readily as Grey Antimony ; small 

 metallic globules are formed, which entirely 

 volatilize, while the charcoal is covered with 

 a white coating of oxide of lead. With 

 carbonate of soda yields globules of metallic 

 lead. 



Locality. The antimony mine of Wolfs- 

 berg, near Stolberg, in the Harz. 



ZIPPEITE. 417 



The crystals, which are aggregated in 

 groups, and present a columnar composition, 

 occur on a massive variety of the same 

 species in Quartz. Their length often ex- 

 ceeds half an inch, their breadth two or 

 three lines; but frequently they are ex- 

 tremely thin, and form fibrous masses. — 

 {Allan.) 



Name. Named by Gustav Rose in honour 

 of Zinken, director of the mines of Anhalt, 

 in Hanover. 



Brit. Mus., Case 11. 



Zinkenite may be distinguished from 

 Grey Antimony and Bournonite, to which it 

 bears a strong resemblance both in colour 

 and fracture, by its greater hardness and 

 higher specific gravity. 



ZiNKGLAS, Hausmann. See Smithsonite. 



ZiNKiT, Haidinger. See Zincite. 



Zinkkieselerz, Berzelius. See Smith- 

 sonite. 



ZiNKOXYD, ??. Leonhard. See Zincite. 



ZiNKPHYLLiT, Breithaupt See Hopeite. 



Zinkspath, v. Leonhard. See Cai^- 



MINE. , 



Zinkviteiol, Hausmann. See Goslae- 

 ite. 



ZiNN, German for Tin. 



ZiNNERz, Naumann. See Cassiteeite. 



ZiNNKlES, Werner, Hausmann. See TiN 

 Pyrites. 



ZiNNOBEE, Werner. See Cinnabar. The 

 word Zinnober is derived from the ancient 

 Greek name for the mineral xivw^agt, which, 

 again, is derived from the Arabic, Konou 

 apar, i. e. very red stuff. 



ZiNNSTEiN, Werner. Tin Stone. See 

 Cassiteeite. 



Zinnwaldite, Haidinger. The name 

 given to the variety of Lithia Mica {Lepi- 

 dolite) from Zinnwald. 



Comp. 2R si + 3ii Si. 



Analysis, by Rammelsberg : 



Silica 51-70 



Alumina .... 26-76 



Peroxide of manganese . 1-29 



Potash 10-29 



Lithia ..... 1-27 



Fluorine .... 7-12. 

 Magnesia . . . .0-24 



Lime 0-40 



Soda 1-15 



Phosphoric acid . . . 0-16 



100-88 

 Zippeite, Dana, Greg ^ Lettsom. Oc- 

 curs earthy and pulverulent. Amorphous. 

 Opaque. Dull. Fracture earthy, 



E E 



