20 A^THRACOXENE. 



a fetid odour when scraped or struck witli a 

 hammer, owing, probably, to its containing 

 sulphuretted hydrogen. It occurs colum- 

 nar, granular, and compact, of various 

 shades of grey, brown and black. The 

 harder varieties, which take a good polish, 

 are used for chimney-pieces, and in orna- 

 mental cU'chltecture, It is found in Sweden, 

 Carinthia, &c. ; also, in the mountain lime- 

 stone on the banks of the Avon, near Clif- 

 ton ; and near Castleton and Matlock in 

 Derbyshire. IMost of the Purbeck and 

 Portland Limestones of Dorsetshire and 

 Wiltshire belong to this class, and may be 

 recognised when used for mending the 

 roads, by the strong fetid odour they give 

 out when crushed by the passage of heavy 

 vehicles. See also Swinestone. 



Brit. Mu.s., Case 46. 



3I.P G. Upper Gallery, Wall-case, 43. 



Anthracoxene. a mineral resin of a 

 brownish-black colour from the coal-beds of 

 Brandeisl, in Bohemia. In thin splinters 

 it is hyacinth-red. H, 2-5. S.G. 1-181. 

 It melts easily with intumescence and 

 burns to a slag, giving off much smoke 

 and an odour which is not disagreeable. 



It is partly soluble in ether, but not at all 

 so in alcohol, except after exposure, when it 

 absorbs oxygen, and then alcohol takes up 

 a little of it. 



A^'nET)UiT,Breithaupt. SeeEDiNGTONiTE. 



Antigokite, Schweizer. Rhombic. Oc- 

 curs in foliated masses of a brownish-green 

 colour by reflected light, and leek-gi'een by 

 transmitted light. Transparent in thin 

 jamina3. Lustre weak. Streak white. Feel 

 smooth but not greasy. H. 2-5. S.G. 2-6. 



Comp. Hydrated silicate of magnesia, 



Mg4 bi2 + H, or more correctly (Mg^ Fe) Si^ 

 + H. 



Analysis by Schweizer : 





Silica .... 



. 46-18 



Magnesia . 



. 35-19 



Protoxide of iron 



. 12-68 



Alumina . 



. 1-89 



Water 



. 3-70 



99-64 

 BB fuses at the edges to a yellowish-brown 

 enamel. With borax forms a glass coloured 

 bv iron. 

 " Locality. The Antigorio* Yalley to the 

 N.W. of Domo d'Ossola, in Piedmont. 



Antigorite has been shown by Professor 

 G. J. Brush to be slat}' serpentine in which, 



* Whence the name Antigorite. 



AXTIMONIAL NICKEL, 

 according to Stockar-Escher, alumina re- 

 places the silica. 



AntIxAioixe Blanc, Broehant. See Va- 



LENTINITE. 



Antimoine Gris, Broehant. Grey Anti- 

 mony. See Stibxite. 



Antimoine Hydro-sulfure, Haiiy. See 

 Kermesite. 



Antimoine Muriatique, La Metherie. 

 See Valentinite. 



Antimoine Natif, Haiiy. See Native 

 Antimony. 



Antbioine Oxide, Haiiy. See Yaeen- 



TINITE. 



Antimoine Oxide Sulfure, Haiiy. See 

 Kermesite. 



Antimoine Oxide Terreux, Haiiy. 

 See Stibiconise. 



Antimoine Rouge, Broehant, See Ker- 

 mesite. 



Antimoine Sulfure, Haiiy. See Stib- 



NITE. 



Antimoine Sulfure Capillaire, Haiiy. 

 A fibrous variety of Stibnite, occasionally 

 presenting a plumose, woolly, or felt-like 

 appearance. 



Antimoine Sulfure Nickelifere, 

 Haiiy. See Ullmannitb. 



Antimoine Sulfure Plombifere. See 

 Zinkenite. 



Antimoine 'Sulfure Plumbo-Cupri- 

 fere, Haiiy. See Bournonite. 



Antijion-aksen, Naumann. See Ar- 

 senical Antimony. 



Antimonate of Lead. See Blein- 

 ierite. 



Antimonblende, v. Leonhard. See Ker- 

 mesite. 



ANTiMONBLtJTHE, V. Leonhavd. See Va- 

 lentinite. 



Antimonglanz, Naumann, v. Leonhard. 

 See Stibnite. 



Antimonial Copper. See Wolfsber- 

 gite. 



Antimonial Copper Glance. See 



WOLCHITE. 



Antijionial Grey Copper, Phillips. 

 Is merely a variety of Grey Copper. It 

 rarely occurs crystallized and is of a dark 

 lead-grey colour, wdth no appearance of any 

 regular structure. Not very brittle. Frac ■ 

 ture conchoidal. The iprincipal locality is 

 Schwatz in the Tyrol, but it is also found at 

 Kapnik in Transylvania, Clausthal in the 

 Harz, Siberia, &c. It is the Schwarzerz of 

 German miners. 



M. P. G. Principal floor. Wall-case IG 

 (Spain). 



Antimonial Nickel, Phillips. See Ull- 

 mannitb. 



