452 LIST OF MINERALS, THEIR 



ALUMINE. 

 hydrate. 



crystallised ; Diaspore. A doubly oblique prism, 

 P on M, 108 30'; P on T, 101 20' ; M on T, 

 65, as measured and described by W. P. 

 stalactitic ; Gibbsite. 



compact ; Agaphite ; Calaite ; Johnite ; Turquoise, 

 earthy, 

 phosphate. 



crystallised ; Devonite ; Hydrargillite ; Lasionite ; 

 Wavellite. A light rhombic prism, M on M', 

 about 122 15'. 

 silicate; Allophane. Cleavage parallel to the planes 



of a square or rectangular prism. 

 sub-sulphate; Aluminite ; Hallite; Websterite. 

 sulphate of, and potabh ; Alum, 

 crystallised. 



fibrous. A regular octahedron. 

 sulphate of Alumine and Potash ; Alum, 

 crystallised, 

 fibrous. A regular octahedron. 



, siliceous. Alum-stone. 



crystallised. An obtuse rhomboid, P on P', 92 50', 



as measured by W. P. 

 amorphous. 



Aluminite, see Alumine, sub-sulphate. 

 Amalgam, see Mercury, argentiferous. 

 Amausite, see Felspar, compact. 

 Amazon-stone, see Felspar, green. 

 AMBER; Bernstein; Karase; Succin. 



AMBLYGONITE. Cleavage parallel to the lateral planes of a 

 prism of about 105 45', with indistinct traces of 

 cleavage oblique to the axis of the prism. I am in- 

 debted to Mr. Heuland for the loan of the specimen I 

 have measured. 

 Amethyst, see Quartz. 



Amianthinite, see Amphibole, Amianthoide. 

 Amianthoide, see Amphibole. 

 Amianthus, see Asbestus. 

 AMMONIA. 



muriate ; Sal ammoniac. 



crystallised. A regular octahedron. 

 stalactitic. 

 earthy. 



sulphate ; Mascagnin. 

 stalactitic. 

 earthy. 



