376 Eighth Supplement to Dana’s Mineralogy. 
Moryspare or Iron [p. 144, I, I o so-called molybdate of iron deseribed 
by D. wen Pas wen has ee been mined by Dr. Genth (this Jour. » [2], xxvii, 
248), and from the varying aries of the iron—in one case 35 p. ey in be ri : 
24° sg auctions whether the substance may not be a mechanical mixture of mo- 
lybdine and limon ie 
Mossortite.—See Aragonite. 
Naeyaetre [p. 65].—Folberth has analyzed me oe from Nagy | 
in six-si 1- uartz, and has a spe 
ulphi pe mt 
Two analyses gave (Verhandl. d. at Ver. f. ‘Naturwissensch., viii, 99, io = 
Kenngott’s Uebersicht f. 1856-7, 179): 
Pb Au 
s Te Se : 
60°83 5°84 3°69 9-76 17:22 tr, = 9784 
60°27 5°98 3°86 9°68 18°04 r= 9783 
Holl very materially from the previous analyses by Klaproth, B 
Schon] 
Narnoxire [p. 327, VI, VII].—A variety of transluscent natrolite from Pesan 
Bg 58 73) by Hlasiwetz, gave the following composition (Kenngott’s Ueber 
sicht, 1858, 7 
Si Al Ca M Na Ha He a . 
4334. 2748 360 0-40 ches 10:30 bs 90 = 9997 a 
(a) basic water. hygroscopic wat ; 
agreeing very nearly with the ca elaga of galactite, which bah been any | 
a variety ed natrolite by Dana and Heddle mee I and Ill 
nan ar 
Ica 8. microse xaminati sae 
only the perfectly bore spdctiolta” w were entirely free from nochacde oe 
pisadly : € perfectly decomposed by chlorhydric acid giving a home z 
ety Jelly, irr with the ered varieties the gelatinized mass alwa: jeontained =e 
suspended more or less of an opaque white powder. If however, ie deep 
- ] 
gave material to determine the cha: ater of this substance. fe reaiee 
analyses prepared from different varieties gave i 
Si Al He I ri 
ue F 1-58 1615 677 1470 = 9980 
2. 0:82 82°56 152 15:00 = 99°90 
These give the pay a, and the powder is diaspore in which a eats of the 
ae Te uantit ty of this mineral in the 
placed The 
lyzed b Gebanee vale’, From 4 07 This will e 
of the differ erent pen ses of Spreus ndifering ng from en oe ther, pie so fon od ¢ 
natrolite, _ billawia g analyses yo ay se I Gry oratory: 
natrolite from Brevig a peelysed by Dr. "Soveking in n Scheerers la pe 
Det wee sealnetstin in from an island of (ienates 
Lteie seis. oo 053 1560 84T = = 9981 
IL 4450 30-05 0-98 0838 1852 9°98 
II. contained 63 p. c. of diaspore, which when subtracted page the above 
Si 47-47, A 26'83, Fe 0°60, Ca 0:88, Na 14-42, H 9:61=9981; prec 
y the composition obtained for I. — adds that the vale ps8 
(lin, 327, anal. 14, 15, and 16) is e than natrolite, W 
considerable peowniass e of digtece For eta fe farthe consider) oie 
points upon the paramorphous nature o of Spreuste ein “(Palio-Natrolit) « 
Tpho 
nal paper in Pogg. Ann., eviii, pp. 416—4 
