The daily Argus. (Rock Island, Ill.) 1873-1877, 1874-11-06
Tho 2 dai1g AAtsns,


| AIuiiciuueh iioIu Sce'"" f''-N'i
rluccs the finest grades for electrotyping
and fine lead pencils, and is uneqUalled
for lbricating. Pure graphite is abso-
! lutely free from grit, when pulyerizcd and
rubbed between the fingers, and the polish
produced in the same way is instantaneous
and very bright. being like a darker shade
of polished silver. 1t is also found mixed
| with iron. rhomspar, and other kinds of
| lime. the rock and earth in which the vein
! is carried aud many other foreign substan-
ces injurious for all the purposes for which
uure graphite is needed. Lime, for in
stance. is fatal to graphite Tor crucible
making.
1t is very refractory in closed vessels,
lint cnmbustible in air of oxygen at Il high
heat. 1t is infusible. The laminated and
foIated varieties are difficult to pulverlze,
reducing the scales instead of grains, and
if it is wanted very finely divided must
!, be ground in water.
II is found in these varieties mainly in
Ceylnn. where it occurs in veins, carried
in rock and knolin, the Jumps are removed
and sent tn market as they are. not being
entirely pure, but sufficiently so for most
nnrposes. 1t is found in many of our own
States and in Canada, in veins and dis
seminated in quartz and other rock, from
which it is separated by stamping in water
and floating of the scales; but while this
process. with care ia the manipulation,
produces the purest graphite for use in
the arts. it has not SO far been successful
except at Ticonderoga by the American
Graphite Company 4 large deposit of
the rranulated graphite was supposed to
have been found in California, and fav-
orable report was made upon it by one of
the European servants. but there is no
real graphite in the mixture lit is a sort of
carboniterous clay, deceptive in its real
characteristics. A good compact, granu-
lated graphite is found in Sonora. Mexico
and a speicmen brought to us from Japan
is of the same character: but the granu-
lated graphite best and longest known to
commerce is found in vast quantities in
bohemia and Bavaria Ii is divided in
water and foated. to separate it into grad
es not being nnre ennngh as it comes from
the mines II il chean in price, but poor
in quality for nencils after extensive pur-
Ifcation II Is not very refractory, and
10 of but I;t,la nse for crucibles, although
long emnlovnd for want of better. 1t is
nsa1oss tnr noI;sh;ng or for preseryatiye
na;nt or f,r lnbr;catinp and having n
,.ar., az, ond,,ot;no nownr cannot he used
- o1ra,taaa For galvanonlastics II re-
". son ahl"an ro.t bloct clav in annearance
'ou nh "."n' r tLn ,,hys;aal nharoctor
a .; n"I 70 ~, ,u ot,rai nranhro tbesn ha;ng
'i0s y, onJ ,'raaSv foal when bigbly
.u1 lnu ,Fbnra 5re Iarae denos;ts Of com-
p puat ,iotaj aranh;te in Siberia Init
,'oO e. ,,a,ns nf trone.
'he! arc ' " la t'1n' ""' nn;. d;seovarod
'o',a.'o,' u ,h", o"'y '"o w ho, ia ne.
Wy WI; hloe'' u ilaa aa .os 80. 80 ~, No.
~, "nu tnat - un'I. 49, ~. W III,
hnSeI, u olcln' D' t"a ~, d;fn nray;tv
q ~ nan ai sIapiii't ne 'i';.e f,rn,s
OF Z,oo5-Z,Z4o' hItlilclal sFaPhito III 'ii'
on the inside OF furnaces. and ret3rls
where coal Is used Tor making gas pu,
1t Is so hard and harsh that IL Is npt a9ap,Iiu
to many uses ana mas peeh u'l'iA1u op's
Tor carbons fof galvdnlc batteries ~
saving IL IN the required shape; wrap
mite occurs In the primitive ana lreque,'t-
ly IN the TRANSITION rocks, III Srahl'e'
gnelss, quartz, teldspar, kaolln, MICA STATE
schlst, crystalline limestone ana occas-
lonally IN the coal formations III Is Ceu'
orally In veins, but IN the quartz ltH oiteh
in disseminated scales. In Ceylon IL Is
IN weil-denned VEINS In the onl,eo
states ana Canada 1t occurs ID irregu,a'
veins ana ID nests, patches, anu poche.s'
the only rellaoie VEINS known pelng tnose
OF the American Tfap'iite company ~
lIconderoga. New YORK
OTaphlte IS the purest CARBON mex. 10
the diamond, put requiring higher leH ~
70 burn IL, ana leaving redulsii ASH !
the SPECIMEN contains trace OF ron aS
most OF IL does. ~ Is hoT ehec'eo ny aoluS
or alkaiics' IL the Wen known ptoeuss
I'll "dsning ~ ioC soilcienV ~ pulnS ~.
graphite 10 me required acgrec' .'In
either OF the following me'hoos nnuy oe
aa Mn,ha,, 30 p.ae,..,. g ,ho pou,,
S.LonI ~ Mines RorTp Jeating TO n red