166 ,T PHYSIOGliAPHXY 



globule, transparent and dark red on cooling, and with salt 

 of phosphorus, at a certain degree of saturation, a blue one 

 in the reducing flame. It occurs at Zinnwald in Saxony, 

 associated with rhombohedral Quartz and Mica, and was 

 first noticed as a particular species, and subjected to a che- 

 mical examination by Messrs BREITHAUPT and LAM- 

 PADIUS. 



TUENEEITE. 



Turnerite. LEVY. Ann. of Phil. XVIII. p. 241. PHILL. 

 p. 382. 



Hemi-prismatic. Combinations having the general 

 appearance of the crystal of prismatic Azure-ma- 

 lachite, represented Fig. 66. 



Measurements of the angles, according to LEVY and 

 PHILLIPS : 



M on M (over i) = 96 10'. h on c = 1 42 29'. 



g on g (over i) = 131 50'. c on a = 92 55'. 



M on x = 140 SO*, h on a = 124 36'. 



h on M (over*) = 80 20'. a' on x = 143 30 7 . 



ft on JW(over k) = 99 40'. h on k = 133 50'. 



There are moreover five prisms indicated in the situation 



of l,f, P, whose edges, contiguous to the face /*, are 130 34', 



98 50', 94 44', 90 0', and 55 36' ; the first and third 



have been observed by Mr LEVY, the other three by Mr 



PHILLIPS. 



Cleavage parallel to both diagonals of the prism re- 

 sulting from the enlargement of the faces M 9 

 one of them more perfect. 



Lustre nearly adamantine. Colour several shades 

 of yellow, often inclining to brown. Streak 

 white, sometimes greyish. Transparent . . . trans- 

 lucent. 



