372 Eighth Supplement to Dana’s Mineralogy. 
Si #e Oa Mg 
: G.=8°798. 85° 21 or. 84°11 30°96 tr. tr=100-28 
6:04 24°81 31-07 049 = tr= 99.68 
“5 G=3427. 4099 1490 10°94 82°94 098 —=10075 
An extended notice of the occurrence of garnet in Russia, with description of in- 
teresting de — s given by Kokscharow in his Materialen zur Mineralogie Russ 
lands, iii, 
Gersporrrire [p. 58, VII].—Dr. Genth has detected crystals of ere: mineral ov- 
pete as 
ville, P. e crystals are cubes with octahedral planes, and sometimes, | \ 
rarely, Paatadooal dodecahedrons are found.—This Jour., [2], xxviii, 248. 
Guasxnire [p. 365, III] —Prof. W. J. Taylor refers to glaserite, with @ query, & 
sulphate of ammonia and potash from the ee Islands, It occur: in conere- 
tions a co or three- arg of an inch in aes Color yellowish-whi 
structure crystalline e pungent and bitter ; ; permanent in air. Har 
ness 2. BB. blacken ‘and fuses with difficulty, ving ’a white bead. The rats 
of two analyses : 
a NH:O KO NaO 
ky 48°40 5°37 43°45 168 = 98°90 
2. 48:30 5°10 46°49 = 99°89 
Both specimens contained traces of organic matter. The composition Cate hee 
mula tae oY KO, NaO)SO*, which differs from that of glaserite only in ha 
| egag of the potash replaced by ammonia and soda (Proc. Acad. Nat. Y ci Phila, 
ov., 1859), 
Hattoysire [p. 251].—Néggerath has described as a variety of opal, a 
ral occurring in a soft gelatinous state in trachyte in the opal mine at Ceres 
mi dens, a 3 
po ae by negrne — i ineral to lose 5:30 p.c. by drying over 
phuric ne 
Si te Ca H 
46°96 36°56 tr. 16°10 = 99°62 
[Assuming the iron to be an unimportant ingredient, this compositi poergn 
to ie as of Nhctlageiee from Anglar and Housscha (Min, p. 151, anal. 1, 2} 
Havesive (p. 394, ITI, IV ].—Analyses of very pure hayesine by Reichardt (Kopp 
Jahresbericht. 1858, 137): ] = 2 se : 
Ca =Na Cl Inso. HO . He 
:: 52-08 1156 tr. O58 094 3353 138 
2 5042 1210 tr, 107 +4121 067 8867 pie 
(a) by the difference. (®) expelled at a red heat. (c) expelled at 100° 
No. 1 was a specimen from the German importers, and 2 was received —— 
51f, 
atti 
Lima. Reichardt gives the formula CaB‘--10H. An analysis of hayesiné 
W. Helbig (Dingler’s Polytech. Jour, cxlvii, 319) gave B 46-46, Oa 14°03, Na 
82°61, NaCl ae 89, ee and Si traces. Additional pre of the 
are given eswil’s Réperetoire de Chimie Appliquée, i, 215. 
Hemarrre [p. die a II, IV, V A specimen of tabular crystalline 
from Vesuvi by MMe abate row Ann,, cvii, 453) age 
— HO=99 1 contained Bo pro rotoxyd of iro 
