Highth Supplement to Dana’s Mineralogy. . 37% 
ar 
| has described the same variety of ne a wine, occurring with sod 
Silet, Mass, (this Jo our, £2 xxix, 65): 
Xl 
Mg Na Ign. 
: Mariinskaja, 44: a 3029 O72 115 O15 2180 148 —-=!1 SP. 
oo , G.=2°63, 44:31 8280 tr. 040 —— 1648 550 T1100 a K, 
1 and es ener et of.—This ore, —— by T. Sterry pes (this 
in ‘el xix, 417) as a mixture of ee foi and puee> -nickel, Ee oe e been 
horoughly examined ty both Prof, Hunt Rep. Geol. Survey, Can 1853-6, p 
$88) and Prof. J. D. bh ocapt (this Jour., (2, xxvili, 15) giving analyd 8 which con- | 
conclus 
Nicket-aymvire [p. 286, VIT].—An ore, apparently an impure variety of this 
mineral, j is deseribed by T, Sterry Hunt (thi s Jour,, [2h xix, 417, and Rep. Geol. 
ia? , eapsubens weeding . 889), as occurring with the cere ae ores 0 of Michipicoten 
Oucoctase [p. 2 9. —Vom Bath has given analyses of oligoclase from the 
“ of Ain eg and also compact lime oli ligoclase from Be diorite of 
FirRosag, in Granbiindten Casta i deutsch. geol. Gesell, ix, 226 a 
Al 
57-64 2299 392 809 087 179 5256=10005 
The analyses were made on the ignited mineral. The yang tied fete Albulaberge 
lost oe =. cent, are that from Piz-Rosag 1°32 
nae ite aeral with pyrrhotine at foe mais s (Bavaria) has 
ben analyse by Potyka (Pogg. Ann., eviii, 866). It is triclinic, and h 
acteristic stried 2 on = = ‘surfac aces, Sp. gr. 2 604. mposition 
Mg K z 
Pee, G.=2795, 69°01 2116 254 $53 078 433 5-94—100-29 
PizRosag, G.=2°83 
g . Na 
: in jer 161 0°66 013 12:57 PAL = 9987 
This gives an oxygen ratio of R38: 8i, m2 1:2°86:10°17 or nearly 1:3:10.—a 
ries Borttetiany between Sit of oligoclase and pct the sp. gr. (2’604) 
‘also between that of ‘oligoclase (2°56) sal ‘ortlicliaas (2°67 
En = [p. 242, 42, Tl, IHL V—VIT] —J. D. Whitney has itaysnt the interest- 
se which is Epa ‘with native copper, 
r, calcite 
eolites in ia or ae ke Superior copper mines es (this a Ab xxviii, 16). 
I occurs in distin et La 
: crystals of a reddish flesh color, having as 
oe riyatals are e rarely as ciuch as one-tentb'oE as ge. 
Bi Al ‘Be Mn tate eis 
6545 1826 0 BT tr. 1521 06510014 Je . 
es (Breithaupt), see Aragonite. 
Scrouire [p. 305, II, 11, Vi, VII].—Analyses of tre spe 
rege athe ral fedmn Beads Hill, N. J., by J. Be Whitey (hi ea, 
} xix, 205 : a 
i Ca Mn Fe Na i 
5482 33-12 0°66 2°6 8°78 2°36 
2 5476 32-88 4:16 9:17 2-03. 
8. 5407 | rie 1:24 S94 272 
a) By the difference 
ont oeeghmapeig of oo an on the sitaiaisite dried at 80° C. gave, he 2, 
ts agree ¥ ne closely with the previous 
men 3; from the Wheatley 
3, 2°75 p These results 
opal Prof. Whitney (Mf anal. »). 
Collection in Waion 6 wi tee Be in., 
the purest, "and the analyses gives 
SECOND sine ERIEs, < XXIX, No, 87.—MAY, 1860. 
48 
