M1NERAL0GICAL NOTES — ANDERSON. 



65 



cerussite [twinned on r (130)], attain a fair size, 2 x 2 x *8 cm., 

 and are yellowish with a pronounced adamantine lustre. The 

 crystal drawn is 5 x 25 x 1 mm. 



Angles : — 



(3) The Proprietary Mine furnishes very tine anglesite specimens, 

 individual crystals sometimes reaching a size of 2*5 x 2 x 1*3 cm., 

 and the crystalline development and symmetry are excellent. 

 Plate xvi., tig. 3, is a photograph, natural size, of a beautiful 

 group of crystals; the drawing (Plate xiv., fig. 5) illustrates the 

 crystal habit. Here the faces v and Y are comparatively large 

 but much corroded, and v oscillates with z. 



Angles : — 



Forms. 



C 



a 



m 

 o 

 I 

 d 



z 



y 



001 

 100 

 110 

 011 

 104 

 102 

 111 

 122 

 124 



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£A 



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