Eighth Supplement to Dana’s Mineralogy. 373 
1 I. Til, 
eet Se aah es 
“a. b. ce ere Bae ok 5 
Insoluble, 1-02 “80 ‘BA 792 «796 «199-205 
Oxy, nant 69°41 70°22 69°96 6442 6401 6881 
Gr sae boos 2898 2950 2766 2803 29:20 
t Mean of three closely-agreeing determination 
from the Jackson Sera IL. from the Cleveland, and IIT. nei the Burt or 
Lake Superior Mou 
aes cating [VII].—This mineral was referred to barnhardtite in the last - 
postal but the recent og beg of Richter, published by Breithaupt_in the B. 
‘hes ary 821, gives its composition as Fe 25°81, Cu 4376, S 
fra (Ca 8), Fe *S?-+-2F eS. Sp. gr. ee Oe [The identity 
line form of this mineral wi ith chalcopyrite, together with its less degree 
: =e an 
sas to note Dr. Genth’s remarks upon the oceurr rrence of barnhardtite wil te cop- 
a a and chalcopyrite at the Pioneer Mills mine (this Journal, [2], xxviii, 248). 
ao RNBLENDE [p. 170, I—IV, VI, Vil Fs Knop has published a description 
man analyses by himself and W. man of 7 interesting soda hornblende 
. Pharn., cx, = 
serpentine rock at Waldheim in Saxony (Ann, d. Chem. u 
of an meni in thickness and resem 
: i Al @ Mn Ca Me Na 
N B871¢ 152 865 025 11°53 10-01 123810005 Knop. 
. B845a 1:99 5653 O51 10°28 11°12 1261—100-42 Hoffmann. 
8. 5845¢ 174 579 032 1076 10°83 PERIL 1g" 
far a Mean of two determinations. 
give too much silica for the horn- 
blend alyses 
e formula, at this say ae ecou ited ae on - a n that the mineral 
acid to tree it from adher- 
sei 506].—An analysis of iodyrite from Delirio’s Mine, Chafarcillo, 
d F ah ‘Ag on 98, I 54 spot insite Jour. Chem. ‘Soc, x, 241). 
PosMinE [p. 19, I].—Analyses of jridosmine from various localities by Deville 
tl Deby (Ann. Chim. et Phys, [3], gon 481). 
: Ir Rd Ru Os Fe 
} Columbia, 70:40 1230 Pe ete —-=10 
oe 5780 068 4 ——— 687 35:105 006 010==10006 
¢, California, nahh oS? = RO RM ee 
5 Australia, Eee 30k 688, SE Oe ee 
6 Borneo, 5827 964 O15 —- 38°94 oy a 
"720 «6-050 «1:10 Of 
: G=189, 4828 5738 0°62 8:49 40°11 078 099=100 
ae SARE Eben: pk) Se SEE NO Ls 
10, “-- G@=204, 4804 165 O14 468 4885 0-11 063==100- 
G.=205, 7086 473. G41, -.” 01 O21 129=100 
in the others by difference. 
-(@) In this analysis, the osmium was determined directly, 
Thow [p. 17, II, VII].—F. A. Genth describes in this Journal, [2], xxviii, 246, a 
+ appears to i aid to ereclogpd ~~ vile in 
neither carbon, 
its exact locality is ice wansinied 
Phosphorus or sul i 
: otiag’ and ee ae al it probabl le hat it eg be a genu- 
Prtonts 
Specimen a nati th “escribes the mass examine e been’ 
tbont one and a balf inves =o of an inch in The 
