Herald and news. [volume] (West Randolph, Vt.) 1878-1943, 1909-11-25

covernmsnt Report on the Stone In
Randolph. Bethel and Rochester.

, States theological survey. mas Just issued
Bnlletin 404 on "The GRANTEES OF Yer
mont, q subject very scientifically treat.
ed by 7. Nelson Dale Of Washington, ID.
C., who personally examined 70 qHarriel
and prospects In the state in 1907, al
which time be investigated among Others
the prospects" In Randolph and the
quarries in Bethel. OF Randolph stone
be speaks as follows:-
ssBeedle's prospect is in the west corner
Of the town Of Randolph between the
Bethel line and the west branch OF the
White river, three-fourths OF q mile west
and southwest of the Central Vermont
railway, which here describes a curve.
1t is on the farm OF A. II. Beedle of Ran
dolph, VT.
"The granite, fine white stone, is q
quartz mennonite Of an extremely light
gray shade and without any mica spots.
Il is lighter than 'Dummerston white
bot not as white as that OF Bethel, when
the rough faces are compared, and its
slight grayness has tinge OF green In ii.
Its texture is even grained and fine, with
feldlpars nearly all under OIL inch and
none over OILS inch. Its constituents in
descending order OF abundance are:-
MiIk-w hite striRted soda-lime feldspar,
some OF II intergrown With potash field
spar, the latter forming, however, but
small portion OF the particle; eoloriess,
clear quartz with fuidal and other cavi-
/ ties, rarely with hairlike crystals OF
rutile; very little separate potash feldspar
\ In minor particles; white mica In scales
up to 0.37 millimeter. The secondary
minerals are kaolin, q white mica, rather
abundant epidote and xoisite in regular
I -. 49, X
I for the greenish tinge, which Is rein
forced by a little calcite and rare chlorite
scales up to 0.22 millimeter. The esti-
mated mineral percentages are;-Feld-
spar, 1876; quartz, 21.2; mica 2.3.
"The stone takes q high polish, as the
absence OF all but very minute mica
plates implies. Being a quartz monzo-
mite and being also free from mica spots,
II will probably hammer quite as white
as the quartz monzonite from Bethel.
sThe stone shows traces of rift or flow
structure, but there is no data as to size
OF outcrop or as to structure. The prin-
cipal opening is 6Ox30 feet.n
Bethel granite Mr.. Dale describes as
Gan elongated mass onChristian Hill, ris-
ing about $50 feet above the adjacent hol-
lows and located two miles north OF
DNknEt NAAAnAC An0 CanN VI nAtb AtNNNs
"The granite exposure is reported as at
least one-half mile long from north to
south. Its width at the quarries is about
$50 feet with border of finer, less whit
ish granite on either side about 40 feet
wide. The entire width between the
schist on the east and west is not far
from 625 feet, but there is said to be an
other narrower belt Of granite several
k.wd~a1 feat aaat ~ Abe 0,.aFv, ana vnno-
truding through the schist.
ssThe white granite and its 40-foot zone
OF iner-grained light bufi-gray granite
are both quartz monxonites, but the finer |
contains more biotite scales than the |
ooarser and they are mostly very minute
and evenly distributed. On the west side |
OF the Ellis quarry the plane Of contact |
between the coarse and fine granite
strikes N. is degrees W. and dips go de-
grees K. The fine-grained granite is in I
contact on the west nth finely plicated,
very fine grained quartz -muscovite- biotite |
schist, and this granite is finer grained at |
its contact with the schist than ii is 20 /
feet away. The plane OF contact strikes
and dips about as that between the two
GRANTEES, and the plications of the schist
run parallel to this plane but are crossed
!
few small garnets and plates OF mag
netite. There are four grades Of texture
in the granite-the classy, one to two
millimeters thick; the very hne, about 20
feet wide; the fine with feldepar and mica
not over one millimeter, about 20 feet
wide; the coarse with teldspars up to 0.4
and O.5 inch and mica to 0.3 inch, over
200 feet wide.
"The granite known under the COM
mercial name Bethel white granite
which has been copyrighted, and the
granite consequently called by another
arm Hardwick white granite, from the
location OF its main Office, are one and
the same. The two quarries, but q few
feet apart, are excavations in granite OF
one mass Of contemporaneous origin and
81 identical compositexture. Neither Of .
The quarries has as yet removed all the
hin surface sheets, although they have
furnished material for several very large :
"The granite is q quartz mennonite of
Tightly blush milk-white color, with
grayish spots up to 0.3 inch, and its con-
Itituents in descending order OF abund-
lnce are:-Clear, colorless, rarely blush
Iuartz with hairlike, crystals OF rutile, /
ind with huidaI and other cavities in
heets, with rift cracks parallel thereto;
,luish milk-white soda-lime feldspar q
lightly kaolinized and micacized; clear q
,otash feldspar; white mica; q very little y
lack mica.
"Three compression tests of the stone I
made at the United Stares Arsenal in o
Mass, proved the average d
strength of the stone to be t.
8, 1853 pounds per square inch. The L
tone is regarded as relatively hard By 81
Forkmen and It's whiteness is shown By p
hese compartments The white OF North Il
az, Me-, Is, technically, very light gray. Il
he w bite of West Dummerston Is q Il
rife lighter, that OF Randolph lighter b.
ct, and that OF Bethel still lighter, b
trictly white, notified With gray. Its m
lhite is more blue than ordinary Yer Il
iont white marble, bat is closely allied Al
D it's blue variety though not to its blu OF
ii gray. Owing probably to the abund- 81
nee OF it's soda-Iime feldspar, its ham s.
lered face is considerably whittier than Ia