356 Sixth Supplement to Dana’s Mineralogy. 
Pst [p. 221, 508, and under Mica in Suppl.]—The muscovite of Vesuvius 
d by Hessenberg (Min. Notizen, p, 12), — the planes O, 4-4, i-i, 44, 
se the hemihedral planes 1, 2, 3-3, 2%. 0:4-1==99° 38/, 
Natrourre [p. 327]. Ege Sa to Q. Sella eee Cimento, vol. ie sey for 
March, 1858) the Savite has the form and angles of natrolite, and is 
species. He obtained J: /=9 10.7 :$==116° 85’ (116° 40’ in natrolit e)t: sy Ps 
=148° 10/ (148° 20/ in natrolite), 4:4 (brach.) =142° 38’ (142° 40’ in re telitel 
He remarks that the savite occurred implanted on serpentine, and toon not por 
it, and that another pt te would probably show a chemical identity. 
Ora Lp. 151, and ITI,TV].—An artificial rope pi by Mr. Langlois 
oo . Phys. [81h lii, fog consists of two parts of wate oe three of silica, Itis 
formed by bring of silicium into contact with m 
OrtHOCtASE - 242, and Il, ITI, V].—Interesting edeiiinits compound crystals 
of eer ise from the Binnen Valley are described by F. Hessenberg in his Min, Noti- 
a 
autiful white —— of the ore ane sod hag G. J. Brush 
(this ge P. = is mostly orthoclase, thoug lase. The latter is dis- 
eee e fine striation of the idea 
e also Iimestene 
ITE [p. 474, and I, r by J. Fritzsche on y set and its re- 
Gio to the Neft-gil of the iakiod Techele en in the Caspian published in 
the Bullet. de St. Petersburg, 376-877, and J. £ pr. Chem., eit, 321. 
PARALOGITE, J. Nordenskiold.—A mineral called Paralogite, from 
occurring in Bucharei, 
1887, 221): in four and eight-sided prisms, afforded Thoreld (Bull. Nat. Moscow, 
Al Oa Mg Mn Na ign. 
4495 2689 1444 1°01 trace 10°86 —:1'85=100 
Affords the oxygen — for sis a #5 Si, 6°96 : 12: om 23°35, Crystallization probably 
trimetric. No cleavage obse H—1'5 ; G.=2°665 ; color white, blue or reddish- 
blue; lustre vitreous. BB. rt ante toa eerie blebby glass, Occurs wi th lapis 
lazuli and fe eldspar. [It appears to be related to scapolite.} 
Pzorouire [p. $05, and II, IIT]. oe = ge bare Janie (Man. Min. p. 
: this species. ae em te rg saree aa yar’ 
figure * lished of be eaicares [Min., peel oe ry Hues au 
the same angle nearly bet pa Flies le aa 
95° 26’ in pectolite and 95° 23/ in wollastonite. Also é-i:5-é in 8 Dep is given Ot ? 
ati 30’, which is its value in Scant ae 4-22 2==182° 54’ i in pectolite a and 132 
wollastonite. These lel with others in composition. 
Prrorskire [p. 845, and Il, IV] Aine of the ss from Schelingen in 
the Kaiserstuhl, b yF. Seneca, (Ann. Ch. Pharm., civ, 371): 
Ti 5895 Ca 3569 Fe 52510087 
59-30 35°94 5-99 26 f wrsessrt es 
Occurs with mica, magnetite, pyrochlore, in small aes cubes. 
Puenactrs [p. = 3" wis ene etal Saracens of phenacite have been stu tudied 
fr the Haidinger (Sitz. Akad. Wien, xxiv, 80). The refraction (which is post sitive) 
a nels ray is stated to be {eperasiiintaly) 1671 ; for the extraordinary, 
— ix, 310) 
ce agape ro Sagem ge heering Noy Cae fool. dae Ges. airs 
‘5 3 
Paha chilis, + eet eR, ats by ‘ordenskidld 
Fp , by Ni 
7 . 
