A16 Scientific Intelligence. © 
brown powder ; splinters are brownish red by transmitted light. It has 
“one distinct and two indistinct cleavages, with the surface of the first 
vitreous in lustre and the others resinous. Hardness between quartz 
and feldspar. Sp. grav.3°69. Before the blowpipe it fuses easily 
with some effervescence to a black shining slag. With borax it dis- 
solves, taking an iron color, but after strong reduction becomes blood 
na. fine powder, it dissolves entirely in muriatic acid. Erdmann 
obtained in an analysis, silica 30-00, lime 18-92, peroxyd of iron 6°35, 
alumina 6:09, sesquoxyd of manganese 0°67, oxyd of cerium 0°32, titanic 
acid 29-01, yttria 9°62; from which he deduced the approximate for- 
mula 3Ca? SiR Si+Y Ti?. Scheerer (Poggend. Ann. Ixiii, 459,) 
has named this mineral Yttro-titanite. 
16, Anatase, Brookite, and Rutile, (Rammelsberg’s Zweites Supple- 
ment; Jameson’s Jour., xl, 383.)—Prof. Rose has shown (Poggend. 
Ann., Ixi,516,) that Anatase is pure titanic acid, like Brookite and Ru- 
tile. When exposed to heat, by which its specific gravity is not alter- 
ed, or, to the action of solvents, it presents no phenomena different 
from those exhibited by the two minerals just mentioned, and the quan- 
tity of iron contained in it is still less than the amount in those two sub- 
stances, (the Anatase of Brazil contains 0-25 per cent. oxide of iron.) 
Rutile, Brookite and Anatase, are the first decided example of a tri- 
morphism, in whose members the titanic acid is distinguished by a dif- 
ferent specific gravity. On being exposed to heat, however, the Ana- 
tase acquires the specific gravity of Brookite, and afterwards that of 
Rutile, and Brookite itself acquires the specific gravity of Rutile. It 
thus appears that, by the action of heat, the one substance is converted 
into the other; and precisely the same phenomena occur in the case of 
artificially prepared titanic acid. 
17. Kaliphite; by M. Ivanorr, (Annuaire du Jour. des Mines de 
Russie, for 1841, St. Petersburg, 1844, p. 386; Berz. Jahresb., XXv, 
1845, p. 331.)—Kaliphite is a Hungarian einen, but the particular 
locality is not known. It forms a fragile, feathery mass, separating 
easily into acicular fibres; lustre resinous; opaque ; powder reddish- 
brown ; specific gravity, 2°81. Fuses easily on charcoal, before the 
hawpies to a brown bead, gives an iron color with fluxes and becomes 
green with soda on platinum, affords much water and dissolves easily in 
muriatic acid. Composition, peroxyd of iron 28-80, binoxyd of man- 
ganese 28-13, water 19°01, silica 12-10, oxyd of zinc 6°30, lime 2°55, 
titanic acid 1-20, alumina 0-60, magnesia 0,70=99-39; formula, 
Mile, Ge) Si43PeH?4+8+MnH?. is’ 
.. Amoibite ; (Jour. f. Pr. Chem. xxxiii, 402. )nofThie name is pro- 
po: 2 cd by v. -Kobell, for an ore of nickel, from Litchtenberg, in the 
telgebirge, which has the expel 794 in 60 ee 
