Corydon Quarry
Corydon, Indiana
April 17, 2004
By Ron Burke
r-fburke@msn.com
Faye and I did decide to go to
the DMC
dig hosted by the KYANA Geological Society of Louisville, KY. It was a
good decision. The day was beautiful. Temperatures reach the low
eighties
by the afternoon, but then we were out of the quarry by noon and
breezes
persisted all day.
Surprisingly there were only a
dozen
of us guests. Familiar faces included Georgia Mineral Society field
trip
leader George Libby and Daniel Miller, president and field trip leader
of KGEMS of Knoxville, TN. There were four KYANA hosts, including David
Horn and Alan Goldstein. The remaining membership had been asked not to
attend but to wait until the following weekend. How’s that for
graciousness?
Elbow room was not a problem. We felt even more privileged when we
learned
that the quarry had been closed from 1999 until this last year, when
the
new owners again opened the quarry to clubs.

Corydon Quarry
Corydon, Indiana
|
|
Our group made three stops and
accessed
four levels in the three hours we were in the limestone quarry.
It was apparent at the first stop that the pink
dolomite was going to be
plentiful. Crawling over the rubble, we spotted and claimed material
without
much effort. Often pieces could be found lying loose so it wasn’t even
necessary to pop the crystal plates off the host rock.
The second stop gave us
the opportunity
to sort through the remnants of a cave that excavation had uncovered.
Several
nice formation pieces and plates were found that had survived
relatively
undamaged. At this level, I also found some chunks of fairly clear
calcite
that appeared to be fragments of large nodules.
The final stop put us at the
lowest
levels. We had the choice of pursuing more dolomite-lined vugs, or
fluorescent
calcite and possible fluorite micro-mounts. We chose to glut ourselves
on the dolomite. I’m not sure any fluorite was found, but did see some
dark smoky looking dogtooth calcite crystals (1/4”) that were the
fluorescent
material to be found at that level. Our efforts proved frustrating only
in that time was limited. Dolomite lined vugs literally were end to end
in a three-foot band about shoulder high from atop the rubble all along
the wall face. Chunks of the rock could be pried out from the wall
without
difficulty. This effort was a bit scary as each rock seemed keyed to
next
and there seemed always the possibility that more rock might be removed
than you’d counted on…maybe all the way up the 40-50 foot high
wall. Some
vugs were large as your face and lined with sparkling dolomite and
accented
with creamy calcite crystals.
We only had about 45
minutes left
so it was a bit of a scramble, but with Alan Goldstein’s help we
managed
to collect more than in all the time before. By the time we got
these
loaded everyone was gathering up to leave.
We all had lunch at a near by
restaurant
and swapped tales and took directions to other sites in the area. After
lunch we traveled further west on I-64 to the road cut where the
remaining
day was to be spent collecting fossils. We spent a brief time with the
group here, but not being into fossils that much we left and drove to a
road cut out of Salem, IN. Here we looked for geodes containing calcite
crystals. Most of what we found were solid, but saw enough to convince
us there could be some good finds if you hit it right.
The following pictures were
taken of
some of the material from the Corydon Quarry.

Cave onyx on limestone
|

pink dolomite and yellow
calcite in
vug
|

pink dolomite with yellow
calcite in
vug
|

close-up of above picture
|
bladed yellow and pink dolomite
Thanks to all of you who
responded
to my questions about Corydon and for encouraging us to go. We hope to
get the opportunity again.
KOR
Ron Burke
|