500 



TABLE OF PRIMARY FORMS. 



Sulphate-carbonate 



of Lead 120 45' 



Arseniate of Cobalt . 124 

 Flexible Sulphuret of 



Silver 125 



Phosphate of Iron. . 125 15 



Heulandite 130 30 



Euclase ., ,.130 50 



Oblique Rhombic prism. 



Oblique from an acute edge. 



M on M'. 

 Hydrous Phosphate 



of Copper 37 30' 



Arseniate of Copper. 56 



Realgar 74 14 



Sphene 76 2 



Sulphate of Iron 82 20 



Glauberite 83 20 



Laumonite 86 15 



Pyroxene ......... 87 5 



Oblique from an obtuse edge. 



M on M'. 



Chromate of Lead . . 93 30' 



Turnerite 96 10 



Blue Carbonate of 



Copper 99 



Mica from Vesuvius . 100 

 Green Carbonate of 



Copper .107 20 



Gadolinite 115 



Humboldite 115 45 



Zoizite. 116 30 



Amphibole 124 30 



Ligurite ? . . 140 



Doubly Oblique prism. 



Diaspore P on M 108 30' 



PonT 101 20 

 MonT 65 



Axinite ..... P on M 1 34 40 

 PonT 115 17 

 MonT 135 10 



CleavelanditePonM 11 9 20' 

 PonT 115 

 MonT 93 30 



Sulphate of 



Copper. . .P on M 127 30 

 PonT 108 

 MonT 123 



Cyanite ....PonM 93 15 

 PonT 100 50 

 MonT 106 15 



Felspar PonM 90 



PonT 120 15 

 MonT 112 45 



Silicate of 



Lime PonM 126 



P on T 93 40 

 MonT 95 15 



Cleavage parallel to the planes 

 of a Rhombic prism, but 

 uncertain whether right or 

 oblique. 



M on M'. 



Spodumene 93 



Bronzite 93 30' 



Hyperstene 93 30 



Schiller spar 93 30 



Petalite 100 



Anthophyllite ..125 



Cleavage parallel to the 

 planes of a prism whose 

 other characters are not 

 known. 



The greater angles. 



Thulite 9230' 



Indianite 95 15 



Amblygouite 105 45 



Fettsteiu.. ..112 



Regular hexagonal prism* 

 Cronstedit ? 

 Dichroite. 

 Dipyre ? 

 Emerald, 



