2 ACHRENSTEIN. 



BB fuses readily to a black magnetic 



alt?;ed form of'Pyroxene (the ^gmne of 



Brevi<^)- 



Erit. Mus., Case 34. 

 ArHBENSTEiN. See Barytes. ^ 

 IchrSte (from « priv. and x«-. ooZoy) 

 thfmme proposed by Rammelsberg for 

 ^^ 1 ^ varieties of Tourmaline. 1 hey are 

 foS at S? GouLa'^^ in Elba, and Sibma. 

 'TciculakIrsekiate of Copper, Allan. 



'1Sc™"bismx:th; or Acxcclar Bis- 

 m4h-oea.oe, Ne^lle-ore. ge Aikeni.e. 

 AcicuLAR-oRE,Ja^«eson. SeeAiKENi™^ 

 AcicuLAB Stone, Jameson. See Scole 



""TcicuLiTE, iVrcoZ. SeeAlKEKITE. 

 iciDE Iksenieux, ^e.dan^. See Ar- 



SENOEITE. 



Acmite. SeeAcHMiTE 

 ^CT^NOLiTE, P/u7/^/>5, Jameson, compre- 



SM^anr.xs|;Lr: 



defp s^^ whieh are ea.ily broken. The 



tion The 2reen colom- is owmg to a small 

 quantity of n-on and chrommin. 



Comp Mg3Si2 + (Ca,Ee,Mn,)Si. 



i;:;S-^y^-cZo,#;fromTa^^: 



Silica . • • • * 1^.25 



Lime . • • • ' 9^.]^o 



Magnesia . - • * ^..n- 



Protoxide of iron • • ^J;' 



Protoxide of manganese . u^i 



Fluoric acid - • [ |__ 



102-12 



T ocalities -EnqlisL Cornwall ; the Li- 



zaid; th^^^^^^^^^^ "^''^^'"'''^ ^'' ' 



ADULAEIA. 



Cape Cornwall ; Huel Unity, Botallack, Huel 

 Owls, and several other mines, ^^ear the 

 Bowder-stone, in Borrowdale, Cumber- 

 land.- PTe/.Ti. Caer Caradoc, Caernarvon- 

 shire; in amygdaloid Anglesea.-ScofcA. 

 Glen Tilt in Perthshire, l^i^^^ ^each' 

 Glenelff, Inverness-shire. The Hebrides. 

 Hillswickness Point and elsewhere m the 

 Shetlands.-Fompr^. Saltzburg and Greiner 

 in the Zillerthal, Tyrol, ^^t. Gottha d. 

 Sweden. Norway. Finland. Greenland. 

 Piedmont. , 



Name. From ^znvoro;, radiated. 



Brit. Mus., Case 33. ,A^Q^.„inf;i 



M. P G Horse-shoe Case, 1048 tolOol. 



Adamant, Kirwan : Adamantine Spar, 



Phillips : from « priv : and 2«^«^a to subdue. 



Names given to Corundum from its hardness 



or from the peculiar lustre which jt occasion- 



ally displays, resembling that of the Ada- 



St or Diamond. The term Adamantme- 



^ar is sometimes applied to Sapphire of a 



hair-brown colour. • i ^^ 



Adeepholite, Nordenshiold. A mobate 



or tantalate of iron and manganese, wit^ 9 7 



ner cent of water. Colour brownish-jellow 



to blown and black. Subtranslucent Lvjstre 



greas'^ Streak white or yellowish-white. 



""^LS^'^RaJa^SlS in Tamela, Finland^ 

 XdTaphane'spar, Mohs. See Gehle- 

 nite and Nephrite. ^ ^ ^^ 



Adinole, Beudant. See Petrosilex 

 IdueaiRE, La Metherie ; Adular, Wer- 

 ner, Haidinger; Aduearia, Jameson A 

 trinsparent or translucent variety ot potash - 

 Felspar (Orthoclase), found in gramtic rocks. 

 U occurs both masiive and erysta hzecl m 

 forms which are sometimes extremely com- 

 plicated. Colour commonly greenish-white, 

 Siy sh or milk-white. Frequently irides- 

 Snf Lustre vitreous inf ning to peai y 

 on the faces of perfect cleavage Buttle. 

 Fracture uneven to conchoidal. H. b. b.Vx. 



^^'^Atalysi. by Abich, from St. Gotthard : 

 Silica . • • • .-.gy 



Alumina . • • • 

 Peroxide of iron . . • J^^^ce 



Potash . . • ; ^.3^ 



Soda . • • • 



100-00 



