Mineralogy and Geology. 275, 
on, 
would 
. B. 
: 3.) Hedyphane.—Hedyphane, from Langbanshytta, has a grayish- 
white color, inclining slightly to yellow, is translucent, and has a greasy 
lustre, and uneven fracture. B.B. fuses easily to a white enamel, and on 
charcoal, gives an arsenical odor. H=4. G.=546. Composition: 
Cl B 
Pb a 
3°06 3°19 28°51 57°45 10°50 
2°93 0°86 
This js equivalent to 11-70 PbCl, 202 B, 28°51 As, 48-13 Pb, 10°50 Ca, giving 
the formula PbC!+-3[(Pb, Oa)?(As, B)].- 
(4.) Orthite-like mineral from Aaré near Brevig—tThis dark-brown 
i vi the 
fracture, and in thin splinters is transparent to translucent. Hardness, 
ween 3 and 4. G.—3'44. Not erystallized. Composition: 
; Ce (Os ‘ing “¢ “Be 2 r Fe Ca Mg Na 
1. 29°91 9-79 15°60 168 427 281 544 642 14:93 045 245 5:50 
et? 
2. 2880 1147 14:12 1-49 17°51 16°06 @r. is 
Analyses 2 was by Nobel, who obtained also 0°83 (?) precipitated by sul- 
Phuretted hydrogen. The mineral was decomposed by chlorhydrie aci 
A portion of the iron existed as protoxyd, but the small quantity of the 
Mineral operated upon would not permit its determination. The author 
considers that the mineral is nearly related to Hrdmannite.—Jour. prakt, 
vhem., xc, 106, - G. J. B. 
2. Kokscharovite—Hermann has further investigated kokscharovite, 
The specimen examined was associated with lapis-lazuli and calcite, # 
after careful picking out, the coarse powder was separated from adhering 
cite by dilute chlorhydric acid. : : 
The mineral thus purified was in erystalline fragments of a dirty-white 
Color, with a vitreous lustre, and was translucent on the edges. G.=2°97. 
In the closed tube, gave only traces of water. B.B., in the forceps, fused 
easily to a white translucent pearl, coloring the flame yellow ; with borax, 
omposition : 
‘Save a clear colorless glass. posi 
oo ORE Pe Oe . Kk Be igs. 
4599-18-90 240 12°78 1645 1°06 1°53 0°60 = 99°01 
| «Oxygen, 23:39 850 053 363 646 018 03 
