220 LIME MESOTYPE. 



Lime Mesotype- See Scot.ezite. 



Lime Saltpetre. See Nitrocatxite. 



Lime Uranite, Naumann, See Uranite. 



LiMNlT, Glocker. Limnite, Brooke ^ 

 3fiUer, Greg §• Lettsom. See Limonite. 

 From ktf^vii, a salt-water marsh. 



Limonite, Beudant. Usually occurs in 

 mammillated, botryoidal, and stalactitic 

 aggregations, with a radiating fibrous struc- 

 ture ; also compact and earthy, and pseudo- 

 morphous after Calcite and Pyrites. Colour 

 various shades of brown, from yellowish- 

 brown to clove- and blackish-brown. Lustre 

 silky, sometimes dull and earth3% Opaque. 

 Streak yellowish-brown. Brittle. H. 6 to 

 5-5. S.G. 3-4 to 3-95. 



Comp. Hydrated peroxide of iron, or 



Fe^H^ = peroxide of iron 85*6, water 14*4 

 -100. 



Analysis, from Perm, by v. Kohell : . 

 Peroxide of iron . . . 83-38 



Silica 1-61 



Water . , = . . 15-1 



100-0 



BE blackens and becomes magnetic : in 

 thin splinters fuses to a black magnetic 

 glass. 



Soluble in warm nitro-mui*iatic acid. 



Localities. — British. Cornwall; at Bo- 

 tallack and other mines ; Restormel, near 

 Lostwithiel. Somerset, at Wrington Hill ; 

 near Clifton ; also at the Brendon Hills in 

 Devonian rocks. Weardale, Durham. Alston 

 Moor and Carrock Fell, Cumberland. Isle 

 of Man. Sandlodge in Zetland. — Foreign. 

 Siberia. Carinthia. Thuringia. Styria. 

 Nassau. The Harz. Siegen near Bonn. 

 Pj'renees. Spain. Villa Rica in Brazil. 

 United States, 



Name. From Mii^oov, a meadow. See Mea- 

 dow-ore. 



Limonite constitutes a valuable ore of 

 iron. It is met with in secondary and more 

 recent deposits, and is often associated with 

 Siderite, Barytes, Calc Spar, Quartz, and 

 frequently with ores of manganese. For 

 varieties of Limonite, see Brown Hema- 

 tite. Bog-iron Ore. Ociirey Brown 

 Iron-ore. Scaly Brown Iron- ore. Yel- 

 low Iron Ochre. Wood Hematite. 

 Brown Ochre. 



31. P. G. Principal Floor, Wall-cases 18 

 and 19 (Foreign) ; 33 and 49 (British). 



Linarite, Beudant, Brooke. Oblique : pri- 

 mary form an oblique rhombic prism. Often 

 in twins. Colour deep azure-blue. Lustre 

 vitreous or adamantine. Translucent. Streak 



LINDSAYITE. 



pale blue. Brittle. Fracture conchoidal. 

 H. 2-5 to 3. S.G. 5-3 to 5-5. 



Fig. 267. 



Cotnp. Cupreous sulphate of lead, Pb 



S + Cu H = sulphate of lead 75-7, oxide of 

 copper 19-8, water 4-5 = 100. 



Analysis, from Wanlockhead, by Thom- 

 son : 



Sulphate of lead . . . 74-8 

 Oxide of copper . . , 19-7 

 Water 5-5 



100-a 



BB on charcoal, in the inner flame, yields 

 a metallic globule, which, on continuing the 

 heat, deposits a coat of oxide of lead. 



Localities.— British. Leadhills, Lanark- 

 shire, with Cerusite. Mexico Mine, Red 

 Gill, and Roughten Gill, Cumberland.— 

 Foreign. Near Ems. 



Name. After Linares, a reputed Spanish 

 locality. 



Brit. Mus., Case 55. 



LiNCOLNiTE, Hitchcock. A Variety of 

 Heulandite, from Durfield, Massachusetts. 



LiNDACKERiTE, J. F. Vogl Occurs in 

 oblong rhombohedral tables, grouped in 

 rosettes and reniform masses. Colour ver- 

 digris- to apple-green. Lustre vitreous. 

 Streak pale green to white, H. 2 to 2-5. 

 S.G. 2 to 2-5. 



Comp. 2 Cu3 As + Ni S + 8H. 



nalysis, by Lindacker : 





Alumina 



. 28-58 



Sulphuric acid 



. 644 



Oxide of copper . 



. 36-34 



Protoxide of nickel 



. 16-15 



Protoxide of iron . 



. 2-90 



Water . . 



. 9-32 



99-73 



BB on charcoal gives off arsenical fumes, 

 and fuses to a black mass. 



Soluble in muriatic acid after long heat- 

 ing. 



Locality. Joachimsthal in Bohemia. 



Name. After Lindacker, Austrian chemist. 



LiNDSAYiTE, or LiNSEiTE, Komoneu, Du- 

 frenoy. A h3'drated form of Amphodelite, 

 the result probably of partial alteration. Co- 

 lour black. Fracture granular. 



