Volltext Seite (XML)
288 SILICATES. Banffshire, near Banchory in Aberdeenshire, Zetland, Lich field in Connecticut, Chesterfield and Eussell in Massachusetts and many other places in the United States, in the Serro do Con^cifao and Passagem in Minas Gferaes in the Brazils, in the Himalaya mountains. Sillimanite occurs in slender prisms at Chester and Yantic in Connecticut, Yorktown in New York. Fibrolite is found with corundum in the Carnatic and in China, Lisens and Faltigl in the Tyrol, Moravia, Bohemia, and North America. 159. BAMLITE.—Bamlite ; Dufrenoy. Bamlit; Haus- mann, Haidinger. Fracture uneven and splintery. Translucent. Lustre vitre ous ; silky in the columnar masses. White, sometimes inclining to green, h = 6‘5. g = 2'984. Before the blowpipe slowly soluble in borax forming a colour less glass. With solution of cobalt becomes blue. Analysis by Erdmann: — Silica . . 56-90 Alumina .... Bed oxide of iron . . 1-04 Lime . . 1-04 Fluorine .... . . trace Is found in long slender prisms and crystalline masses, with quartz in gneiss, at Briikke not far from Brevig in the parish of Bamle in Norway. 160. WOLLASTONITE.—Tabular spar; Phillips. Wol- lastonite; Hauy. Prismatischer Augit-Spath ; Mohs. Wol- lastonit; Hausmann, Haidinger. Oblique. 101,100=32° 4'; 111,010=69° 2l'-4; 101,001=37° 4l'. a 100, c 001, r 205, S 203, t 201,' u 201, v 203, z 023, e Oil, x 021, m 110, n ill, / 221, g 221. re 20° 30' sc 29 41 tc 60 18 ao 69 48 UO 95 23 VC 135 32 ZC 34 62 ec 48 16 XC 64 28 ma 42 12 nc 47° 6' f° 69 10 me 76 11 9 C 93 62 gu 43 63 ft 38 37 zz? 110 16 ee 87 28 xxf 51 8 nri 118 49 ff' 106° 45' mm' 95 35 y/ 92 14 FIG. 310. v \ ■* V m' • \ " V ^ *• \ V
