Rocks and Minerals of U. Camada = 609 
I should call this aw argillaceous carbonate of iron, or ar- 
gillaceous sparry iron ore. I believe they think it is yellow 
ochre at the Marmora works. 
N°. VII.=Clayey iron ore, Marmora, 
Earthy, uneven, irregular masses resembling some kinds 
of graphic clay. Colour green grey, slightly glimmering. 
Streak, greenish grey. Powder, darker greenish gray. _A- 
fone on charcoal, it becomes powdery, and rising up a little 
turns reddish brown and crumbles into dust, parts of which 
look metallic, but does not readily fuse. With borax on pla- 
tena wire, it is very difficult to fuse, but turns at last into a 
beautiful light green glass which on coolng fades. During 
the process the essay becomes bright red hot in points. With 
sall of phosphorus it is also difficult of fusion; at first it forms 
a red globule which turns gradually a dark bottle green, then 
a fine light green and becomes a colourless glass on cooling, 
Not effervescent in acids, nitric, muriatic nor sulphuric, I 
should call this specimen (which is very commonat Marmoe 
ra, and is called a coarse black lead by the workmen,) green 
argillaceous oxide of iron, from the peculiar bottle green 
colour it developes. Perhaps there is some chrome in_ its 
composition which gives it its slightly green hue in mass. 
1t resembles in its qualities the indurated green iron earth 
of Jameson, Hauy‘s fer oxide terreux. supposad by some, 
according to Cleaveland, a phosphuret of iron, and cf rare 
occurrence, 
It affords a greenish black trace on paper with pressure, 
hut none on white porcelain, and feels very slightly greasy. 
When moistened by breathing on it, it gives out a strong ar- 
gillaceous odour. 
N°. VULL—White and light blue radiated and bladed sul- 
phate of baryles, Kingston, 
This mineral exists at Kingston, in the upper beds of a 
compact dark limestone with very few, or rather scarcely any, 
thells. These upper beds appear to have been subjected two 
some 
