204 KORUND. 



KoRUND, Werner. See Cohundum. 



KoTTiGiTE, Dana. Oblique : occurs mas- 

 sive, or in fibrous crusts. Colour various 

 shades of pale carmine and peacli-blossom 

 red. Lustre of surface of fracture silky. 

 Translucent. Streak reddish-white. H. 2-5 

 to 3. S.G. 3-1. 



Comp. Analogous to Cobalt Bloom, with 



which it is likewise isomorphous. (Zn, Co, 



Ni)5 As-:-8H. 





Analysis, by Kottig : 





Ai'senic acid (by loss) . 



. 37-17 



Oxide of zinc 



. 30-52 



Oxide of cobalt . 



. 6-91 



Oxide of nickel . 



. 2-00 



Lime .... 



. trace 



Water .... 



. 23-40 



100-00 

 BB on charcoal in the outer flame changes 

 colour and fuses to a pearl, gives off arseni- 

 cal fumes, and leaves a slag of oxide of zinc. 

 Readily soluble in dilute acids. 

 Loeality. The Cobalt mine Daniel, near 

 Scbneeberg, in Saxony. 



Name. After the discoverer, Otto Kottig. 



KouPHOLiTE, Vauquelin. A variety of 



Prehnite, often containing dust or vegetable 



matter, which cause it to blacken and emit 



a burnt odour BB. 



Analysis, by Walmstedt ; 



Silica 44-71 



Alumina .... 2399 

 Peroxide of manganese . 0*19 

 Protoxide of iron . . . 1-25 



Lime 25-41 



Water 4-45 



100-00 



Locality. Mont Blanc. 

 ' Na7m. From y^ov(^o?, light, and x/fo?, stone. 



Brit. Mus., Case 28. 



Krablite, Forchammer. A siliceo-fel- 

 spathic mineral allied to Spherulite, and 

 forming the basis of the trachyte. Pitch- 

 stone, and Obsidian of Iceland. H. 6. S.G. 

 2-57 to 2-65. 



Camp. (R + Al) SiS. 



Analysis, by Forchammer (S.G. 2-389) : 



Silica_ 



Alumina 



Peroxide of iron . 



Lime . 



Magnesia 



Soda 



Potash , 



74-83' 

 . 13-49 

 . 4-40 

 . 1-98 

 . 0-17 

 . 5-56 

 . trace 



100-43 



KUBIZIT. 



Krantzite, C. Bergemann. A fossil resin, 

 occurring in grains and roundish pieces in 

 the Brown Coal of Lattorf. Colour yellow- 

 ish, but mostly brown to black, owing to 

 the presence of earthv impurities. Elastic. 

 Easily cut. S.G. 0-968 ; of the crust 1-002. 

 Fuses at 225° C. (437° F.) without changing 

 colour ; becomes fluid at 288° C. (550-4° F.) 

 and at 300° C. (572° F,), then distils over 

 a brownish oil, having a very disagreeable 

 and penetrating odour. 



Name. After Dr. Krantz, of Bonn. 



Kraukite, Brochant. See Dufrenite. 



Kreittonite, a black Spinel. S.G. 4-49. 



Comp. Zn Al + Fe F^'e, or (Zn, Fe) (Al Fe). 



Analysis, by v. Kohell : 



Alumina .... 49-73 



Peroxide of iron . . . 8-70 



Oxide of zinc . . . 26-72 



Protoxide of iron . . 8*04 



Protoxide of manganese . 1-45 



Magnesia . . . .3-41 



98-05 

 Locality. Bodenmais, in Bavaria. 

 Kremersite. a mineral allied to Syl- 



vine, occurring in ruby-red octahedrons on 



Vesuvius. 



Comp. 2(K, Am, Na) CI + Fe Cl^ + 2H. 



Analysis, by Kremers : 





Chlorine 



. 55-15 



Iron 



. 16-89 



Potassium . 



. J2-07 



Sodium 



. 0-16 



Ammonium . 



. 6-17 



Water . 



. 9-56 



100-00 

 Name. After Kremers. 

 Kreuzstein, Werner. Cross-stone. See 

 Harmoto3ie. 



Krisoberil, Werner. See Chryso- 



BERYL. 



Krisolith, Werner. See Chrysolite. 

 Krisuvigite, Forchammer. A variety of 

 Brochantite, occurring in small beds at 

 Krisuvig, in Iceland. 



Analysis, by Forchammer : 



Sulphuric acid . . . 18-88 

 Oxide of copper . . . 67-75 

 Water ..... 12-81 



99-44 

 Krokoit, Breithaupt. See Crocoisite. 

 Krokydolite, Hausmann. See Croci- 



DOLITE. 



Kryolit, Werner. See Cryolite. 

 KuBiziT, Werner. See Analcime, 



