The Crittenden record. [volume] (Marion, Ky.) 1904-1907, 1906-02-09

the highest grad, has either Princeton
(Ste. Genevieve Of Ulrich) or Tribune
limestone for one or both walls, large
ly, when filling assures. Coarse, dark
or brown huorspar is in large measure
associated with bituminous shale walls,
and at times il carries large amount
Of coarse, crystalline sphalerite. Finer
grained, dark colored huorspas is usual
ay associated with iasperoid, and oc-
ours as a replacement either Of Prince
ton or st. Louis limestones, principally
the former; and il is largely associated
with fne-grained zinc and small cubical
or granular galena- Purple huorspar,
though Il occurs more or less in sur
face deposits, is largely TO be found IN
the St Louis limestone and gravel de-
posits. Gravel fiuorspar is in nearly
all cases practically in place, and the
solid deposits are TO be found by sink
ing on them.
6. The eoarser lead ore tgalena)
Is largely associated with white fiuorite,
while the small cubical and granular
varieties are replacement deposits. A
body Of almost solid galena, 3 feet in
width. has recently been found IN the
Mary Bell mine, on the Columbia tract.
at depth Of 20 feet.
7. The largest ore bodies constitute
requirements Of wide sheeted zones,
while the narrower ones are filling OF
issurers.
l. The chances for finding zinc de-
posits ore better in sheeted zones par
allel with the veins than in the Auor-
spar deposits. the lattcr generally oc-
urring nearer the FAULT plane. On this
account, the small amout Of crOss-cut-
ting that has been done from the veins
has prevented the discovery Of many
zinc deposits. There is reason to be-
lieye that the disposition OF iluorspar
prospectors TO cover up the discovery
Of zinc. and do little searching for Il,
on account Of It's undesirabihty in
association with iluorspar, has greatly
retarded the opening Of probably q
large number of deposits ot this
character. Zinc deposits in the sheet
ed zones, while carrying some ilusrspar.
have not as much of the mineral rs
have those directly at the fault or In
the veins.
Q. The chances for thc discovery Of
new iluorspar and lead deposits along
undcyclopcd. or partially developed.
fault zones are good.
10. A number Of clay deposits OF
|, the Steven Tunnels" type rather a
frcsand than a hrcclay, Of which large
quantities are hippcd from Stevens
Tunnels were found. with chances
for more. This product has naturally
the same constituents a. Dinas brick,
and 80 Is a iirst.elass material,
The quantity Of huOnpar IN this
district Is enormous. But Few Of the
opened veins are worked out Tor much
as loo fcct below water lcycl. and be
: low that depth the products appear 10 be
: the same. The popular idea as TO the
small amount Of zinc in the district
appears TO be erroneous. A new Gus
. tom concentrating plant, for the sep
ara,ion Of the zinc and lead, Is beinG
: erected. but its precise character (th'
! method TO be fallowcdD is not known
= FAULTS SOUTH oF THg WESTERN COAL
FIELDS. ErC.
u An examination Of the faults enc
10 fractures lying south Of the know
70 lead. Einc and spar region In Wester
- Kentucky, and south Of the westeu
N Coalheld. 10 ascertain whether any o
70 them carry ores or huorpar. wal
=. undertaken In 1904 The work wa
placed m the hands Of Mr.. J. \
n, Wright. the present writer also rcnd =
n ing aid In the investigation. kr
N Wright presented brief. bu, interest
ing report Of this work. II was de