Sixth Supplement to Dana’s Mineralogy. 349 
i aki 
oo pees axis. By ch om the position so as to make it conform to the usual posi- 
in co lumbite then ‘his br. achydiagonal Saar the vertical axis, and his verti- 
al the brachydiagonal, and the angles stand th 
Greenland 
Middletown Comrie eae Breithaupt’s 
Columbite, D. Descloizea Breithau Jettering. 
Z:I = 100°40’ 100° (from “7 it) 100° Q” = o:o over b 
#3:1-3 = 1369192! ie (from é-3 : ¢-2) it 34’ = n:n over P 
Hitt = 141° 8’ 56’ = M:M 
It is unnecessary to go nite: as these angles pata the values of all the 
“ea ier An a paper on the Greenland columbite by Descloizeaux is referred 
in uppl 
Heinys rema ws in the course of his eee that the Tantalite ae 4 has an 
angle pablie pre 121}4° to oe for bere fundamenta. d thus differs widely from the 
the eat of of t the fundamental aie 
i 
Corrrr Als 115 an att —A native copper pseudomorph after a aragonite, and 
| Probably fro ai Take 8 Superio A has been described by E. Sochting (Pogg. civ, 832). ° 
CorrEer Wace [p. 52 pir copper * nickel from the Sangerhiiuser Revier, afforded 
| Grunow (Zeitsch. D D. geol, Ges., ix, 
: As 54:89 § 1:35 Ni 43°21 Fe 054 
meee ore afforded, As 48°7, Ni 48'4, S 2°8. 
‘ LITE [p. 834, and I, II, al Parry (Pogg. ciii, 116 Ley —_ 
“oy path of the erystals from Andreasberg and Toggiana. 
has determined to be seth 0 with the inclination of the vertical axis 90° 8! a0" r 
i-2:i-2=76° 38’ 83/” at 15° C., 76° 39/ 50” at 70°C.; in ano 
40’ 16’ at 18° C., 760 41! 47/7 ak 84°. CO. .0:2-4=147° 42° 48" at at 11° 0, Fed 
42’ 43’’ at 80° C.; in another, 147° oP 11’ at 1° C, 147° 86 6” 1377 at 71° © 
1 te4: / at 80° C.; Oon the opposite i-é =89° 
53° 55’ at 22° C,, ggo 54° 8! at 52° oO. “ithe orthodiagonal was more affected nade 
the The plan 
e clin arranged 
| in Vertical zones) 0, ws 24, +i, ii, 24; -B-§; 1-2, 4-2; +$,-39; 4%, 2+, -2; 
$3; 4- -4; 2-2, 4-2, i- 2, 3-2; 2-4, 44; 24, 3-i, 47, i¢ (see Supplement III for 
tables of comparison.) 
Enargire and IV].—The occurrence of e 
x Bassam [p81 808, a co umounced by W. 3 Taylr (Pree Acad Se 
Philad, 1 — cee hciitle motallie-zastient oooerriog 1 small cavities in 
Quartz, ‘The color 168 ee a rae grayish black, and the powder has a metallic 
\ BB. decrepitates ; on charcoal, the odor of arsenic and a slight incrustation 
of antimony. An analysis of “7082 gram afforded: 
S 3450 As 16°31 Sb 1-29 Cu 46°62 = 0-27 = 98°99 
the brackets include - 4 
. —— «i4,-2 aes 62.44, 1,-1;-03, (4, & 
turk Ota st4 me endt Me 4} 
‘ meomeeim de i, 1-4, -1-4, 3-4, 4-2, 14, 44, 1-2 ‘ 
4, Ala, 0, i, 1-4, -1-i, -3-, i-2, +-4, 1, -1, 3-8, 4, -5-$, 2-$, 3-§, 2-2]. 
—Hessenberg has described different 
tals of e sf pits i Moin, p24 a ‘24 and Foretsang See tketiieg domrtiptionn 
planes not 
