364 Ninth Supplement to Dana’s Mineralogy. 
Mascacntye.—On page 880 in the Mineralogy the formula for this species should 
read NH‘O serie instead of 2H. 
co oppositi in.) ha 
erystals of cuprite occuring in the same vein with melaconite are uniformally octo- 
and in his opinion there is no sufficient reason for considering the crystals 
orphs. 
ELANHYDRITE.—A new mineral found in a decomposed wacke from Schmel- 
zerthal near Honnef on the Rhine; described by A. Krantz ( Verha ndl. d. naturhist, 
ide u. West halens, xvi, 154). It is amorphous, occurs in irregu 
rn 
streak, blackish-brown. Does not fall t © pieces 
ments adhere to the tongue, G.= 1:82. Ana alysis by Rammelsberg : 
Si #e Fe Mn 
41°63 18° 3 2°36 4-838 2°51 5°23 167 20°71=100°66 
giving the formula R? se Si+12H a composition near that of palagonite. 
(Kopp’s Jahresbericht, 1859, 795.) 
Metturre [p. 475, II, VII].—Kokscharow describes two localities * Nee mineral in 
Russia, one at Maléwka in Government Tula, the other near Nertc sate au- 
thor gives new measurements, and an agate of the specimens from M by 
J. v. Iljenkow.—(Aokscharow Mat. Min. Russ., iii, 217, in Kenngoit, sani tf 
1859, vie ae 
1 
0 x H 
G.= 1597 aie 39 14-20 44-16 
e amount of carbon corresponds to 42°36 pr. ct. of mellitic acid, so that the results . 
agree very closely with these obtained by Wohler for specimens from Artern. 
Mrcroctine [p. 242, VI, VII].—Scheerer hg analyzed the siege ia which the 
Norwegian spreustein ‘is imbed ed, and also the feldspar inclosed in the spreustein 
crystals, (Pogg., eviii, 480, in Kopp’s Jahresbericht, 1859, 785), Anal, 1, is the guter ’ 
and 2, the enclosed felds spar, 
Sn Si x K Na Ign. i 
G.—2'580 1. 66.03 19.17 O31 020 696 683 O21=—= 99°71 
: 2. 65°68 1953 052 O22 693 %11 011100710 
This proves the feldspar matrix and the inclosed nucleus to be identical. 
Monrorite.—See under Sillimanite. . 
MonrTIceturre Ip. att} —An examination of this mineral by: Rammelsberg (Bion. 
Ann., cix, 569), shows it to be distinct from chrysolite, pees already podicaes by 
Scacchi. The crys stals analyzed had a yell perth “gray co 
rounded only on the edges, “The white ade te eons is Bei se in chlosbydrie 
acid, but by heating por aad Composi 
Ca Fe 
3T: 89 34:92 22°04 5°61 = 10046 
—o 19°67 9°98 882 1-24 
The oxygen ratio of the silica to the bases is 19:67:20°04 or 1:1 the same 
tna but ‘the mine ~ “gs9p isomorphous mixture of nearly equal parts wy a 
te of lime, and silicate of magnesia, a portion of the latter being replaced by 
Loe of iron. ‘Forma oat Si-t(ile #Pe)* § Sis =6i sa 18, Oa 34°65, Mg 21°65, 
Fe 5°57 pgp - the cleavage of ibe 
solite. Secanation se cine a tha of Britny 3 ener 
latter must henceforth hg sania. under mon spt bu ay 
