314 General Notes. — [March, 
yellowish material which sometimes penetrates the interior, ind- 
cate that it is a product of the alteration of samarskite or some 
allied species. 
At the same locality a mineral allied to allanite occurs as flat- 
tened crystals of pitch-black color, brownish-gray streak and with — 
an imperfect conchoidal fracture. H: = 6. Sp. gr. = 3.15. | 
alysis gave: 
* SIO, o ALOG -Y,O, GSO FeO, FeO .MgO CaO RD 
39.03" 94.33. °S.208 2.53 97.10 5.22 4.29 17.47 2.78 = aoe 
gray in color, with metallic luster and dark-red streak, witha 
crystalline structure and brittle, uneven fracture, having a hart: : 
ness of about 4, and specific gravity of 4.89. It fuses and gives 
antimonal fumes before the blowpipe. Analysis gave: = 
He oh Sb Cu Zn Fe Pb siliceous residue 
26.88 34.47 23.20 yee 1.38 1.19 RE 
_ The copper exists one-half as cuprous and one-half as cupit 
sulphide. It is as distinct a species as stylotypite, but in order t0 
avoid multiplication of names it is suggested that both stylotypi 
and the species here described be considered as varieties of bout : 
nonite. ty 
number of grains, which, picked out by the aid of a lens ee 
the platinum grains of Colombia, S. A., are shown to coms i | 
* Another alloy. obtained from Taguaril, Brazil, contained Oe 
per cent. of palladium, and corresponded with the ion 
Pd Au, The palladium gave it a bronze-like color. oe 
‘Some GREENLAND Minerars.—In a paper on some a 
from the sodalite-syenite of South Greenland, Mr. Joh. stale’ 
gives a number of analyses of interest. Among the supe. 
analyzed were microcline, arfvedsonite, ægirite, nephelite, & 
ite, lievrite and lepidolite. It is interesting to observe thal Not 
of these substances occur similarly associated in Southern 
way. The rock, composed principally of microcline, arf i 
and sodalite has frequently a reddish-brown color, due 10° 
