TARXOWITZITE. 

 land. See also Ixiolite, Kimito-Tanta- 

 LiTE, Skogrolite, Taalmela-Tantalite, 

 and CoLUMBiTE. 

 Brit. Mus. Case 38. 



Tarnowitzite. a variety of Aragonite, 

 from Tarnowitz in Upper Silesia, containing 

 carbonate of lead. 



Analysis, by Bottger : 

 Carbonate of lime . . 95"i)4 

 Carbonate of lead . ,3*86 

 Water . . . , , 0-16 



9996 



Brit, Mus., Case 41. 



Tauriscite, Volger. A mineral isomor- 

 phous with P2psoinite. Occurs in acicular 

 right rhomboidal prisms, with the composi- 

 tion of ordinary sulphate of iron. H. 2-5. 



Co7np. Fe H + H 6S, or FeS + 7 H. 



Locality. Windgalle, Canton of Uri {pagus 

 Tauriscorum), Avith crystals of Alum and 

 common Sulphate of Iron. 



Tautolite, Breitkaupt; or Tautolith, 

 A mineral resembling Hyalosiderite, found 

 in volcanic rocks near Lake Laach, on the 

 Lower Khine. Colour velvet-black. Opaque. 

 Lustre vitreous, Streak grey. Very brittle. 

 Fracture conchoidal to uneven. H. 6"5. 

 S.G. 3-865. 



BB fuses to a black magnetic slag : with 

 borax yields a clear green glass. 



Name. An abbreviation of Tautometro- 

 iite (from wyTa, the same, i^ir^ov, measure, and 

 A/'&?, stone), because of the resemblance of 

 the measurements of the angles of its crys- 

 tals with those of Chrysolite, and many 

 other analogous minerals. 



TcHiNGTCHANG. The Chinese name for 

 dark blue kinds of Lapis Lazuli, containing 

 disseminated spangles of Iron Pyrites. It 

 is made into buttons, snuff-boxes, cups, 

 vases, &c. 



Tkctizite, Breitkaupt. Occurs in small 

 acicular and pyramidal crystals and massive. 

 Colour clove -brown. Lustre vitreous or 

 resinous. Soft and friable. H. 1-5 to 2. 

 S.G. nearly 2. 



Comp. Unknown, but supposed to be a 

 hydrous sulphate of peroxide of iron. 



BB fuses in its water of crystallization. 



Readily soluble in water. 



Localities. Graul, near Schwartzenberg, 

 in Saxony. Braunsdorf, in the Erzgebirge. 



Tekoretine, Forchammer. A crystal- 

 lized mineral resin, found in fossil wood in 

 Denmark. It resembles Fichtelite, except 

 in composition. It consists of C H, or car- 

 bon 85-89, hydrogen 12-81. 



TENNANTITE. .373 



Soluble in ether ; in alcohol onlv slightly. 

 Fuses at 450 C, (113° F,) and distills at 

 nearly 336^0, (636° F.). 



Telesie, Haiiy. The name given by 

 French lapidaries to crj'stallized and trans- 

 parent kinds of Corundum, and to the va- 

 rieties which are used for tine stones in 

 jewelry. See Sapphire, 



TeLLUR AURIF£;RE et plombifere, 

 Jjaiiy. See Sylvanite. 



Tellur-bismuth, v. Leonhard. See Te- 

 trad ymite. 



Tellurblei, G. Rose. Telluride of lead. 

 See Altaite, 



Tellur-silber, Rose. See Hessite. 



Tellur-wis3iuth, v. Leonhard. See 

 Tetrad YMITE. 



Tellure xatif aurifere et plombi- 

 fere, Haiiy. Yellow Tellurium. See Syl- 

 vanite. 



Tellurk NATIF AURO - ARGENTIFeRE, 

 Haiiy. Graphic Tellurium. See Syl- 



VANITE. 



Tellure natif auro-ferrifere, Haiiy. 

 See Native Tellurium. 



Tellure natif auro - plombifeee, 

 Haiiy. Black Tellurium. See Nagyagite. 



Tellurgoldsilber, Hatismann. See 

 Petzite. 



Telluric bismuth, Phillips. See Te- 

 trad ymite. 



Telluric OCHRE, Daraa, I See Tellu- 



TeLLURIC oxide, j RITE. 



Telluric silver, Allan, Phillips. See 

 Hessite, 



Telluride of Lead. See Altaite. 



Tellurige saure, Petz. See Tellu- 

 rite. 



Tellurite, Nicol. Telluric Ochre, oc- 

 curring in small white beads or spherical 

 masses, having a tinge of greyish -yellow, 

 and a iibrous radiated structure, at Face- 

 bay and Zalathna, in Transylvania, with 

 Native Tellurium. 



Comp. Telluric oxide or Tellurous acid ; 



Te = tellurium 80, oxygen 20 = 100. 



Tellurium-glance, See Nagyagite. 



Tellurium-ochre, Petz. See Tellu- 

 rite, 



Tellurous acid. See Tellurite, 



Tellur-silber, G. Rose. See Hessite. 



Tellur-silberblei. See Sylvanite. 



Tellur-wismuth, See Tetradymite. 



Tenasserime, Rev. F. Mason. See Tre- 



MENHEERITE. 



Tennaxtit, Haidinger, Naumann • or 

 Tennantite, Dana, Phillips, Greg ^ Lett- 

 som. Cubical ; primary form the octahe- 

 dron. Cleavage dodecahedral; imperfect. 

 bb3 



