N. von Kokscharov an the Clinochlore of Achmatowsk. 177 
The clinochlore of Achmatowsk is a | O(P)_ 
very beautiful mineral species. It ac- |i-~(yJ %(~) 
companies handsome crystallized varie- | | #(m) | 
ties of garnet, diopside, apatite and other |1-« (i)} 1 (0) 
species, in which this locality is so very 23 (s)| 
rich. Many of the crystals are tabular, “er 
while others are lengthened in the di- = o— () 
rection of the vertical axis, and often rin as (8) 
they are in druses. A large part of the it aoe i 
crystals are unfit for measurement by | 2iQjer roth 
the reflective goniometer; but there are pod) Fad 2, a 
-2 (w) 
Observed Planes. 
sults. The planes observed are as here 
enumerated.* 
The most important combinations are as follows : 
l—0, ~4-0, 2,1,@, 33, 4-0, 
bee 
< 
a 
ry 
a 
| 
i 
ig 
8 
8 
~ 
oa 
8 
Nha 
WS 
8 
oe 
> 
8’ 
9 
8! 
VL—0, 2,1,@, 4-6, wm. 
ViL—o, 2-@ 3 l-m 3 4-m 3 2, @, 2-3, w-3, -6-3, 4-.@ ® 
VIL—0, l-w,4-0, lw, 2-3,0-3, 40. 
tical axis or @ on 6. 
ies The planes are here presented in a table according to the method of J. D. Dana, 
the several zones of planes; the Ist column being the zone parallel to the 
orthediagonal ; the 2nd, the Fand ental zone; the 4th, that parallel to the clino- 
Th 
¢ for half the orthodiagonal, and C for the inclination of the ver- 
jam 
e symbols are ntially ann’ pt that the letter P is 
dropped. The Sditaee used okscharov on his figures Iso given 
: : by are a en.—Only pa 
of the figures of the memoir are here copied. In figure 2, the lettering is altered, 
i ud with the notation, only 4 is wiritten for # ; O, I, 1, 42, ii are respect- 
ond P, M, ©, t, h, of Kokscharov—D.] 
ND Series, Vol. XIX, No. 56.—March, 1855. 23 
