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156 Sulphuret of Antimony, &c. in Haddam, Conn. 
being in the state of a peroxide, according to Mr. Childrem 
indicated 88.90 metallic iron, or according to Klaproth, 
92.21 metallic iron. 
To secure greater accuracy, the process was repeated with 
50 grains of the mineral, from which were separated 3.50 
—_ plumbago. The Iron was precipitated as before ; 
r being heated, weighed 63 grains, which, according 
to to Children, indicated 44.10 metallic Iron, or by Klaproth’s 
rule, 45.90. 
Remarks by the Editor. 
There can be no question that the native iron, above de- 
scribed, is a genuine production of the earth ; and that it 
holds no connexion with meteoric ‘iron. The mass bears 
the marks of a true metallic vein—it has smooth sides (saal- 
bandes) and small specks of blue and white quartz are stick- 
ing in it; nickel, constantly found in the meteoric irons, is 
absent from this specimen, and if it were a question whether 
Native iron be a true production of mines, this discovery de- 
cides it, 
¥: C. Feb. 15, 182'7. 
II. Notice te Seiphaer st of Antimony, a and Ple- 
_ onaste, at Haddam, Connecticut ; with various other localities 
- 
of minerals : ~ Cnas. U. Snepanp.—More than a year 
since, EF had occasion to examine a large quantity of minerals 
obtained at the celebrated tocality of Chryso-beryl, in Had- 
dam}; among them, I had the satisfaction to discover Sul- 
phuret of Antimony, Automalite, and Pleonaste. 
The Sulphuret of Antimony was very sparingly dissemi- 
nated through feldspar, in the form of compressed rhombic 
isms; and also in small masses, whose structure was per- 
fectly pongo It is of a dull lead gray colour, soft and — 
fl iately on being placed before the blowpipe 
it melts, and is almost totally converted into the form of @ 
ae ‘roms pavnet: ‘The vio’ are about 2 
