38 Captain Bayfield on the 
Ocraneprar Fruor 
FourateD & CRryYS- 
TALLIZED. 
Genus 3d Fluor. 
Green fluor spar occursin a vein in 
greenstone associated with sulphate 
of barytes and calcspar. Green and 
blue fluor occurs with calespar and red 
oxide of ironin another vein in the 
same greenstone, about 3 inches wide, 
the sides of which were thickly coated 
with the red oxide of iron. Anothec 
vein in company appeared filled atmost 
alone with this ochreousirou ore. ‘Fhe 
veins are on the south side of fluor is~ 
land—western entrance Neepigon bay. 
Purple fluor associated with pyrites 
and calcspar, in islands close to Wedge 
island, east part ef Neepigen bay— 
Also disseminated in sienitic granite 
Pic island bay. 
At Hawk Islet, and near Gargantua 
in amygdaloid, associated at the latter 
place with much ferruginous matter, 
green earth, and calcspar, ( Bigsby.) 
Near Black river it was associated with 
epidote, in a quartz vein, in granite, 
(Bigsby.) 
Traces of fluor spar were observed 
in various other parts of the north coast» 
or in the old red sandstone, 
CLASS THIRD.—METALLIFEROUS MINERALS. 
Native Correr,—The most remarkable locality of native 
copper is the Ontonagen river, on the 
south coast, which river has its source 
among the Wisconsin mountains, ‘There 
is an immense mass of it lying under a 
high bank, 30 or 40 miles up from the 
river's 
