396 Scientific Intelligence. 
labradorite; but G.=2°65; it was therefore in the feldspar, and 
e saussurite, state. The occurrence of labradorite and saus- 
surite ina euphotide, and transitions from one to the other, appear 
to be not unc 
An analysis oe a saussurite from euphotide in Norway near 
Bergen, afforded Th. Hjortdahl (Nyt. Mag. Nat. Christiania, and 
Groth’s Zeitschr., 1878, 305), SiO, 42°91, AlO, 31°98, FeO ‘019, 
MgO 0°81, CaO 20°94, Na,O 2°32 2, Ke O 0-18=99" 33, with G.=319. 
It differs — =~ other analyses of saussurite of the Jirst_kind, 
or true sau exceptin é 
Alt ough jadette i is not yet known to be one of the euphotide 
minerals, the specimens being thus far only polished implements 
or ornaments, its analyses are of interest in this connection, and 
the following | are here added: 
. Morbihan. 2. Emerald-green. 8. Thibet, 4, Red, China. 
sid, 58°62 59°66 58°28 60°22 
AIO, 21°77 22°86 23-00 22°58 
€r0, 3 0714 sy : 
FeO 1°86 0-42 4°94 1:59 
MnO 0°28 acet trace 0°65 
M 23 2°41 1°04 1:15 
CaO 3°85 2:37 3°06 3 
Na,O 11°64 12°87 9°23 12°60 
K,0 soe Sil trace pT 
Ign. ee, es ae 0-11 
100°25 100°63 99°55 100°70 
G.=3°344 G.=3.330 G.=3°25 ee 
Nos. 1 and 2 are by Damour, C. Rend., 1xi, 1865, P. 361; 3, by 
Fellenberp, Verh. d. schweiz. Ges. Solothurn, 1870 4, Eckstein, 
in H. sage r’s work entitled “ Nephrit und Jadeit, i," "Stuttgart, 
1875, p. 3 
Th. de A aussure’ s paper in which he gave the name Saussurite 
to the “Jade” which his father had described (in his Voyages 
dans les siete $112 and v, $1313) is contained in vo Journales 
es Mines , 206 , 1806. Further study will probably result in 
dividing up ‘eaphotie according to the kind of uaiigsieeti = en 
6. On Leucoxene in the New Hampshire Diorites ; e G 
Hawes’s Report on the “Mineralogy 
34, sc certain reticulated appearances In the 
reenstones” of New Hampshire, as probably of organic origin 
the result of a ies of decomposition to 
which titanic iron is peculiarly subject, and the structure was 
produced by the cleavage or lamination of the mineral, e 
product of the decomposition is a grayish white substance, the 
composition of which is not well established. It was called leu- 
coxene by Giimbel. Sandberger and von Lasaulx regard it as 
a lime titanate, which results from a reaction between the titanic 
acid and the lim e of the hornblende and feldspars. Cohen sug- 
gests that it is pure titanic acid, which view is favored by Rosen- 
busch. But if atever the sabutune may be pro oved to be, the 
forms observed are the result of the decomposition of titanic acid. 
