s 
412 Fifth Supplement to Dana’s Mineralogy. 
diallage. Composition of (1) the pure mineral (mean of two — (2) the rock, 
and (3) of the pale bronze diallage of another diallage rock, i 
Si Al Fe ie sr Mg oe 
li 47-15 845 * $78 24:56 1135 582 = 10106 
2. 41:80 6:80 11:05 ae 26:13 7-00 4-60 = 100°88 
3. 5000 ao 1359 — ZT Et 3°80 6:30 = 100°86 
Renssevarrite.—See Talc. 
Rirwouite.—See Chlorite. 
sm io vs Kokscharov describes in his Min. Russel, 1i, 352, @ 
variety of e from phenacite a op the Ilmen Mts., whi ich 
the form of the swasanett octahedron, without any prismatic plane na 
it Jim do. Tt is i olor, ops shia or lig ghtly red on the pee 
some aren | erystals it in the cee erystals some s 0-4 in. in breadt 
& °C. v. Kokseharo 38, v. Romanwo ie Composition il ha 
ican i ” Lerman, Titanic eid 89 30, sesquioxyd of iron 107% 
it [p. 90, and IT, TIT, 1V] rie aes of brine springs of Cheshire, England ; 
an B. Northcote.--Phil. Mag., [4}, xiv, 457. 
Scapotite [p. 201, and T, I1]—Von Kokscharov i in his Min. Russl. ii, 804, rema ed 
ipon the identity of Glouenlivg and oy tes eae is from alee vicinity oft 
river Siudianka beyond Lake Baikal, Siberia. G.=2:65--267, H=5--6. “ 
ingebine Occurs massive. Von Rath obtained ee the Glaucolite (mean © 
Its): 
Si Al Be Oa Ms Kk Na FH Gad 
4601 26-72 149 1568 046 056 4:57 O47 1:68=9764 
A soft yellowish white opa que pseudomorph from nasi oA: Norway, is 
described by Kenngott, in Pogg., cii, 308, but no analysis is giv 
Scorrcrre [p. 328, and I, 1V].—R. Hermann states (J. f. h., Ixxii. 26) Sac 
took a white amorphous plastic mass from a a in the co Hoes basalt of Sto re 
in Saxony, and put it away in a-box fter a long time, on openiug the box, 
found there--not the saints ag mass, “but a gittip of white acicular crysta 
had all the aspect of Sec oh 
Deseloizeaux states rhe e M., xi, 261) a iy vet a of Mesolite “a co 
pound; but in other respects the mineral does not differ from Scolecite. he 
not able on account of the twin nature of the "ehdds és determine their opt 
characters. 
‘SERPENTINE [p-' 282, and J, II, ITI, IV]. ses Serpentine rocks of Onna 
been carefully studied and pei ‘zed by Prof. T.S. Hunt eS Log an’s Rep. 1 of att 
this Jour., xxv, 217). He adopts for the rocks the name ophi iolite. The pur 
i 
. rock, being dewviial ophiolite, and other vilahian, named 
ioli i the e 
s ph ‘ 
Magnesite intimately mixed with the serpentine. The following a 
of three Canada serpentines and another from Syracuse, New Yo ies 
Si Mg ‘Fe Ni Sr A (ign) 100 
1. Orford, 40°30 [8907] 1702 0-26 = trace sie 90:19 
2. Brompton Lake, 4290 8628 747 015 026 1814=N 
. a — . 70 4068 851 unde. —— hi ws 
Syra 3261 812 Al513 —— sd rcer 
Thes 
Fo oer Sti of the ophiolite rocks, see this volume, p. 2 bivens sien : pei 
a 
to contain more or less tale, _— and other accessory 
ar in i pro daga 
The serpentine of an kee tak. eceurs in 9 of the pipe ee de 
Group, ints maleen strata ‘ante! Vanuxem’s N. ¥. Geol. Rep. p- } 
jn it. 
ls which § 
ee 
