FIGURE STONE, 

 of a yellowish tinge, and lapping one over 

 the other. If the wood is split in any direc- 

 tion, numerous shining points appear, show- 

 ing that it is completely saturated with the 

 mineral. Distils without being decomposed. 

 Boiling point above 320^0. (6O8OF.) 



Comp. C8 W, or carbon 87-27, hydrogen 

 12 73-100. 



Localities. The turf beds of Eedwitz. 

 The Fichtelgebirge of North Bavaria. 



Figure Stone. A name given to 

 Agalmatolite, from its being frequently 

 carved into figures by the Chinese. 



FioKiTE, or Pearl Sikter. A hydrated 

 form of silica (variety of Silicious Sinter), 

 occurring in smooth and shining, globular 

 or botryoidal masses with a pearly lustre. 

 Colour white, yellowish -white, or greyish. 

 Translucent at the edges. Fracture flat 

 conchoidal. H. not so hard as Quartz. 



Analysis, from the Geyser of Iceland, bj- 

 Damour : 



Silica 87-67' 



Alumina and peroxide of iron 0-7i 



Lime 0-40 



Soda ..... 0-82 

 Potash ..... trace 



100-00 



Localities. Santa Flora (whence the 

 name Fiorite), in Tuscany, incrusting vol- 

 canic tufa. The volcanic districts of Italy, 

 Auvergne, Iceland. 



Fireblende, Dana. Oblique, Occurs 

 in delicate crystals which are grouped like 

 those of St'ilbite. Colour hyg.(;inth-red, 

 with a pearh' adamantine lustre. Trans- 

 lucent. Sectile and somewhat flexible. 

 H. 2. S.G. 4-2 to 4-3. 



Comp. Sulphur, antimony, and 62-3 per 

 cent, of silver. 



BB like Pyrargyrite. 



Localities. Andreasberg, in the Harz. 

 The Kurprinz mine, near Freiberg. 



Brit. Mus., Case 11. 



Fire Garnet. See Pyrope: also 

 Garnet. 



Fire Marble. See Lumaohello. 



Fire Opal. A variety of Opal present- 

 ing hyacinth-red and yellow reflexions. 



Analysis, from Faroe, by Forchammer ; 



Silica "... 



88-73 



Alumina 



0-99 



Soda and potash . 



0-34 



Lime .... 



0-49 



Magnesia 



1-48 



Water . . 



7-97 



99-96 

 Localities, — English. Cornwall at Huel 



FLEXIBLE SILVER ORE. 139 



Spinster, Rosewarne Mine, and near St. 

 Just. — Foreign. Zimapan in Mexico. Guate- 

 mala. Far6e Islands. Washington co., 

 Georgia, U.S. 



Brit. Mus., Case 24. 



FlSCHAUGENSTEIN,"^ See ICHTHYOPH- 



Werner. I THALMITE. From 



FiSH-EYE-STONE, ('%&"?. a fish, and 



Jameson. J o(pdKX/u,o;, an eye. 



FisCHERiTE, Hermann. Rhombic. Oc- 

 curs both crystalline and massive. Colour- 

 less, and translucent; dull green when mas- 

 sive. S.G. 2-46. 



Comp. Al^ P + 8H = alumina 41-82, phos- 

 phoric acid 28-88, water 29-29 = 100. 

 Anah/sis, by Hermann : 



Alumina .... 38-47 

 Phosphoric acid . . . 29-03 

 Peroxide of iron and man- 

 ganese . . . .1-20 

 Oxide of copper . . . 0"80 

 Phosphate of lime and gangue 3-00 

 Water 27-50 



100-00 



BB turns white, with blackish spots ; and 

 gives off^ much water. 



Locality. Nischne Tagilsk, in veins in 

 ferruginous sandstone and clay-slate. 



Name. By Prof. TschurofFsky, after 

 Mons. Fischer of Waldheim, V. P. of the Im- 

 perial Society of Naturalists of Moscow. 



Flabelliform Kouphone Spar, Hai- 

 dinger. See Mesole. 



Fleches d'Amour. See Venus' Hair- 

 stone. 



Fleurs de Cobalt, Brochant. See 

 Erythrine. 



Flew Coal. A kind of Coal resembling 

 Flint-coal, found at Wedgebufy in Stafford- 

 shire. 



Flexible Sandstone. A fissile variety 

 of Sandstone, thin slabs of which are some- 

 what flexible. The flexibility of the Sand- 

 stone occurring in thin layers at Villa Rica, 

 in Brazil, is owing apparently to the dis- 

 semination of small scales of Mica through 

 the mass; a similar flexible Sandstone oc- 

 curs in the gold region of North Carolina. 

 It is found also at Jujjur, about 120 miles 

 N.W. of Delhi in India. 



M.P.G. Horse-shoe Case, No. 731. 



Flexible Silver Ore, or Flexible 

 SuLPHURET OF SiLVER, Phillips. A variety 

 of Sternbergite, occurring both massive and 

 in small tabular crystals, which appear to be 

 right oblique angled prisms. Colour dark 

 externally, with a metallic lustre, which is 

 less brilliant than that of Silver Glance. 



