STNONYMES, AND PRIMARY FORMS. 479 



Lumachella, see Lime, carbonate. 

 Lydian-stone, see -Quartz. 

 Lythrodes, see Fettstein. 

 . 



M 



Made, see Chiastolite. 

 Maclurite, probably Condrodite. 

 Madreporite, see Lime, carbonate. 

 MAGNESIA. 



borate ; Boracite. A cube. Some of the secondary 

 forms are however such as might result from the 

 regular modifications of a tetrahedron, 

 carbonate. 



crystallised, from New Jersey, but the crystals I 

 have seen are too imperfect to admit of a 

 determination of their forms, 

 pulverulent. 



of Magnesia and Iron ; yellow Bitterspar from 



the Tyrol. 



crystallised. An obtuse rhomboid', P on P', 

 107 30'. See Annals of Philosophy for May 

 1823. 

 Jrs>. ....... siliceous, compact ; Baudisserite ; Magnesite. 



The silica probably not essential to the species, 

 which may be merely a carbonate mixed with 

 silex. 



pulverulent; Razoumoffskin. 

 fluate ? 



hydrate, siliceous ; Meerschaum ; Myrsen ; Kil ; Kill- 

 keffe. 



of Magnesia and Soda ; Bloedit. 



sulphate. 



crystallised. A right square prism ; M on a plane 



belonging to class c, 129. 

 fibrous, 

 earthy. 



of Magnesia and Soda. 



of Magnesia and Iron ; Hallotricum. 



Magnetic iron, see Iron, oxydulous. 

 Malachite, see Copper, carbonate. 

 Malacolite, see Pyroxene. 

 Maltha, see Bitumen. 

 MANGANESE. 

 carbonate. 



crystallised. An obtuse rhomboid^ P on P', about 

 107* 20', but the planes of the only specimen 



