ROSELITE. 

 drummy, Auchindoir, and Glenbucket, in 

 Aberdeenshire. On the shores of Kirkaness, 

 Shetlands. Island of Shiant, Hebrides, opal- 

 escent and pink. — Irish. Near Belfast. — 

 Foreign. Rabenstein, in Bavaria, in a vein 

 of manganese traversing granite. France ; 

 Misere, Dept. de I'lsere. Abo, in Finland. 

 Near Connecticut, U.S. Kolyvan, in Siberia. 



Rose Quartz is employed in jewehy. It 

 takes a fine polish, and, when the colour is 

 good, the ornaments made of it are beauti- 

 ful. When cut and polished, and of a good 

 colour, it is sometimes sold for Spinel, yet 

 its deficiency in hardness, transparency, and 

 fire is so great, that the deception may be 

 easily detected. Itis cvit en cabochon or en table, 

 and should be set with a coloured foil, as it 

 fades if exposed for a long time to the light, 

 or if kept in a warm place. The colour may, 

 however, be restored by keeping it for some 

 tune in a damp place. 



Brit. Mus., Case 21. 



31. P. G. Horse-shoe Case, No. 472. 



RosELiTE, Levi/. A deep rose-red coloured 

 variety of Cobalt Bloom, containing lime. 

 Translucent. Lustre vitreous. Streak white. 

 Fracture conchoidal. H. 3. 



Fig. 367. 



It occurs in small twin crystals at Schnee- 

 berg, in Saxony, and was named by Levy in 

 honour of Gustave Rose, of Berlin. 



Brit. Mus., Case 31. 



RoSELLANE, Svanberg. According to G. 

 Rose, is an altered Anorthite. Occurs in 

 grains, rarely larger than hemp-seed. Colour 

 varying from pale ro^'e - red to deep red 

 (whence the name). Translucent. Lustre 

 on cleavage-planes splendent. Streak white. 

 Perfect cleavage in one direction. Fracture 

 crystalline. H. 2-5. S.G. 2-72. 



Comp. R3 Si + 2Al Si + 2H, or (K, Ca, 



Mg) Si+AlSi + 2H. 



Analysis, by Svanberg : 

 Silica .... 

 Alumina 



Peroxide of iron . 

 Peroxide of manganese 

 Lime .... 

 Magnesia 

 Potash 

 Water .... 



44-90 

 34-61 

 0-69 

 0-19 

 3-59 

 2-45 

 6-63 

 6-53 



99-49 



ROTTEN-STONE. 323 



BB fuses with difficulty to a white slag. 



Localities. Aker and Baldurstadt, iu 

 Sweden. Finland ; at Abo, near Lake Ma- 

 narou, in limestone. 



RosENiTE. The name given by Zincken 

 to Plagionite, in compliment to H. Rose, by 

 whom it was analysed. 



M. P. G. Principal Floor, Wall-case 28, 

 No. 201. 



Rosin Tin. Tinstone of a pale colour, 

 translucent and with a resinous lustre. 



RosiTE, Hansmann. See Roseli.ane. 



RossTREVORiTE. A fibrous stellated va- 

 riety of Epidote, met with near Rosstrevor, 

 CO. Down, Ireland. 



RosszAHN. See Rohwand. 



Rosy Red Quartz, Kirwan. See Rose 

 Quartz. 



Roth Bleirz, Werner. See Crocoisite. 



RoTHBRAUNSTElNERZ, Haldiuger. See 



DiALLOGITE. 



ROTHEISENERZ, RoTHEISENSTEIN, Wer- 

 ner. See Hematite. 



RoTHER-EiSENSTEiN, Werner. See Red 

 Hematite. 



Rother-eisen- VITRIOL, V. Leonhard. See 



BOTRYOGENE. 



RoTHER Erdkobald, Werner. See Co- 

 balt-bloom. 



K OTHER Schorl, Klaproth. See Rubel- 

 lite. 



Rothes Bleierz, Werner. Rothes 

 Bley'erz, Emerling. See Crocoisite. 



Rothes Braunstein Manganspath, 

 Werner. See Diallogite. 



Rothes Rauschgelb, Werner. See 

 Realgar. 



Rothgulden, Rothgultigerz. Names 

 used by German and Hungarian miners 

 for Dark and Light Red Silver Ore. See 

 Pyrargyrite. 



RoTHKUPFERERZ, Werner. See Red 

 Copper Ore. 



RoTHNicKELKiES. See Copper Nickel, 



RoTHOFP^iTE. A variety of common 

 Iron-Garnet from Langsbanshytta, in Swe- 

 den, It is remarkable for containing a large 

 quantity of (protoxide of) manganese ; some- 

 times as much as 7*14 per cent. 



RoTHSPiESGLASERZ, Werner.'\ See 



ROTHSPIESGLANZERZ, Haus- > KeRME- 



mann. J .site. 



RoTHziNKERZ. See Zincite. 



Rotten-stone. A soft and earthy kind 

 of stone, used in a state of powder, for 

 polishing brass, silver, Britannia metal, 

 glass, &c. Colour dirty-grey or reddish - 

 brown, passing into black. Dull. Gives out 

 y 2 



