Hrom near Bufialo ib.) Pe 84:80, © isi 064, Si 2°88, 5 0 
Second Supplement to Dana’s Mineralogy. 205 
Tripiwm (P. 13). onthe e gold of California is well known to be associatad with Irid- 
ium. Traces of it have remained in e coin of the P. hiladelphia salut In a paper 
Dubois (cited | in Ann. d. Mines, [5], vi, 518, 1854), it is stated that the com 
had undergone in England a de ee of four pence per ounce on account of the 
iridium; and much difficulty ha a ncou hited tn 
of the hard points, some grains 0 dium _ pres ent in the gold weighing even 40 
muiliigrams. Mr. D tion by making an alloy of gold 
with silver, as usual, and the pe at it to stand — 15 minutes; Pa ridium, 
whose specific gravity is 19, vil settle to the an alloy o: r 13 
repetition a the process a few times will remove i whola, 20, fa ounces of 
California acne have thus sata 21 ounces of iridium 
JAULINGITE, Zepharovich. ae Wiss. Wien, My 1855, “iain 
new mineral bg eke: ae lignite of Jauling. At is unded massess in the tron 
= JUNKERITE Ne = RP eit confirms the conclusion that Junkerite is Spathie 
‘on. (Min. N 14.) 
Kyanrre [p. 263) Analysis of Kyanite from Wermland, by J. Igelstrém: (J. f. 
Pr. Chem., itiv, 61, from Oefy. Ak. Férh., 1854, p, 66): 
Si 40-02, Al 58-46, #e 2-04. G.=3°48. 
04). otic Anata of Lazulite occurring with Svanbergite (see beyond), 
by Igelstrém” oe it.) : 
r Al Mg Ca Fe Mn H 
4252 32:36 8:58 tr. 10°55 tr.  5°30==99°81. 
Streak and powder blue. ‘G.==2°78. 
Levcornane [p. 182].—R. P. Greg, Esq, in Phil. Mag. for July 1855, p. 510, describes 
and figures a ‘aeaig erystal of Leocophans Calling O the basal plane, 1 J’, the 
lett 84 right lateral pisone of the prism, O: J or J’ is 90°, I: I’ 90°—-93° (91° 3’, 
iller). i 
is, form is hence near Andalusite seh: ¢, re. r 
72=1189 * rg Sa 1 7: J==91°. daha gig: tie eet 
ei 14193" Amin, 087m Bag nin Natrol 1448 
ulation 117° 494. The plane g (m—n) appears to be héethiiecr + 
but the he on te an oni me angle oy ae poe bg ag a be daptes 
al and 36} the 
msm, The dee ages O, 
‘alogy ; the angle 196° 29 being the supplement neal 
sppomeat 0 of the inclination of f on the diagonal pl (i ern ( 
IMONITE [p. 131].— Analysis of ore from near t ee 
by Dr. Li he ihe men Was, BF 446. Fro 
a a ies > a ee It epot, 1 dost, lato. 8105-10280. 
.. * 250." ; 
in Californi, ia, Am. J. Sei, [2], xx, 81; Phoenixville, Pa, i 
Macwrsrte {p. 441].—Bolton, Lower = Getasin T. S. Hunt, Am. d. Sci., xix, 429. 
