Clarke and Chatard—Mineralogical Notes. 21 
2, SAUSSURITE. \ 
From a euphotide collected by J. S. Diller, U. S. Geol. Surv., 
thirty-seven miles north of Pitt River Ferry, Shasta County, 
California. The mineral is nearly white, with a greenish-gray 
cast, and has a sp. gr. of 3:148. As the rock itself will be de- 
scribed by = Diller, only the analysis of the saussurite need 
be cited her 
iielopie, F. W. Clarke. 
Lpetion ooo ae A eee FS 2°42 
MGS us wa See a 42°79 
pase tie ee ewe a uy 29°43 
me pe dmemon sk Ree 
Ferrous oxide: See Sao . 265 
Soda __.. RBA gS 
Magnesia 1°40 
100°33 
8. ALLANITE, 
From Sprague’s granite quarry, Topsham, Maine. Abund- 
ant in slender black prisms, usually rusty upon the surface, 
which are known to the local quarrymen as “ nails. 
Analysis, F. W. Clarke. 
Ignition ___- 4°13 
TGR ooo can 4 oe eeu 34°97 
] $e a Oc ears were 12°83 
Perrous Gkide oie 2s 18°11 
anganous oxide ..-..---.- 2°82 
Cerium, lanthanum and didymi- 
um oxides Syren eenewen wees 17°26 
Me Rs se "21 
Preaeena i Fd eats 1°40 
98°73 
ie ferrous oxide carries with it some ferric oxide, As the 
4, DamourRITE. . 
Two specimens of a micaceous mineral from the topaz local- 
ity at ‘Biouabes. Maine, collected by Mr. N. H. Perry of South 
aris, and sent by him to the National Museum, have been 
examined and prove to be different forms of damourite. 
A. Subfibrous compact, light greyieh green in alae greeny 
luster, associated with albite and topaz 
