54 



On the Homceomorphism of Mineral Species 



TABLE II. 



Angle of Vertical Prism I near 102°. 



I. 



Valentinito, 

 Heavy Spar 

 Anglesite, . 

 Leadhillite, 

 Celestine, . 

 Anhydrite, 

 Tantalite, . 

 Mascagnine, 

 Ataeamite, 

 Sulphur, 



Prism 

 I. 



II. 

 Orpiment, .... 

 Dituorphine (I.), 

 (II.) 

 Epistilbite, 

 Childrenite, 



III. 

 Prehnite, . 

 Columbite, 

 Wolfram, . 

 Mengite, . 

 Brookite, . 

 Scorodite, . 

 Hopeite, . 



IV. 

 Manganite, 

 Calamine, . 

 Haidingerite 

 Brochantite, 

 Cotunnite, 

 ? Mendipite, 

 % Jamesonite 



O) 102° 36' 

 101° 40' 

 103° 38' 

 103° 16' 

 104° 2' 

 102° 56' 

 101° 32' 

 107° 40' 

 97° 2' 

 101° 58' 



100° 40' 



98° 6' 



100° 32' 



(i) 100° 58' 



104° 14' 



Dome 

 li. 



Dome 

 1». 



(20 



m 



en) 



59° 4' 

 63° 40' 

 62° 42' 

 60° 20' 

 62° 39' 

 61° 25' 

 64° 7' 

 65° 52' 

 67° 40' 

 65° 18' 

 46° 18' 



73° 



75° 40' 

 74 c 2' 

 (£i) 70° 50' 



(21) 



(li) 



(#) 



70° 32' 

 74° 36' 

 75° 29' 

 72° 34' 

 75° 52' 

 72° 38' 

 74° 58' 

 83° 6' 

 74° 20' 

 76° 40' 

 55° 36' 



83° 30' 

 83° 40' 

 84° 24' 

 81° 30' 



Axes 

 b 



1.7651 : 

 1.6107 : 

 1.6415: 

 1.7205 : 

 1.6432 : 

 1.6836 : 

 1.5967 : 

 1.5437 

 1.4919 

 1.5606 

 2.3443 



1.3511 

 1.2876 

 1.3262 

 1.4063 



87° 14' 1.3514 



99° 41' 



97° 28' 

 99° 13' 

 97° 54' 

 93° 16' 

 92° 43' 

 97° 40' 



122° 50' 

 128° 26' 

 126° 58' 

 126° 41' 

 126° 44' 



1.248 1 

 1.2276 

 1.2715 

 1.2632 

 1.2807 

 1.2557 

 1.2247 

 1.3680 

 1.1310 

 1.2342 

 1.2342 



1.2059 



1.1526 



1.203 



12121 



1.2853 



I. Angle of macrodome near 60°, and brachydome near 

 71°. 



II. Angle of macrodome 70° to 75°, or near the brachydome 

 of section I. 



III. Angle of macrodome 83° to 90°, or near the brachydome 

 of section II. 



IV. Angle of macrodome 114° to 120°. 



