I use the winter months to clean minerals and get ready to attend a few mineral shows. As I cleaned a number of crystals, I found some microscopic topaz on some pegmatite plates. I guess these plates may
be collectible to a mineralogist, but are not really of interest to me as you almost
need a microscope to see the topaz.
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Small topaz at base of fluorite |
Still an oddity I suppose for Lake George. I also met a geologist from another local
rock club over the winter who has interest in odd things and so I showed him some small blue
gemmy crystals on a plate of pegmatite. I found this specimen several years ago. The geologist got quite excited about these
crystals. He is going to write an
article on this find after the specimen’s identity is determined using XRF
technology. Most likely a phosphate mineral new to this locale is in the
process of being discovered (see post 7/27/13: Fluorite and Pocket Minerals)
It’s been a slow start to the rock hounding season. First the late season cold and then
some heavy wet snows.
Words like snow
bombs, snowmageddon and Canada's revenge were bandied about to describe the spring
storms. The biggest snow of the season came in mid May with 10 inches of very
wet snow and a lot of damage to budding tree limbs.
One month later it still looks like a tornado
went through some parts of my neighborhood. Some seasons we
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10" of heavy snow in May damaged many trees |
start rock hounding where we left off the
previous year.
We closed last season
with nothing much to go back to.
So far
this year we’ve been prospecting for a crystal “hot spot”.
Some days we come away with just float
crystals from a long ago exploited mineral cavity, other days we manage to find
a small pocket of crystals.
We’ve gotten
out a few times and have had a couple minor scores but not much to blog about.
I’ve combined a few June rock hounding
outings into this blog post.
Back to prospecting… so we revisited some old and new areas
so far this year.
We hit one area that
we had found a lot of goethite in the past and decided to give our luck another
go in that area.
This spot is fairly
remote and we were surprised that somebody redug out a number of the holes we
had previously dug and filled.
We noted
in each dig the high-graders never dug down far enough to hit the bottom of the
old pocket, but just made a mess digging large holes that we had previously
filled with junk tailings.
The claim is clearly marked and gated. Folks who mineral trespass have been and are prosecuted. We
dutifully filled their holes and remediated the sites once again.
I selected an area downhill of where my
digging partner Bob had found some nice goethite.
There was a large tree stump in the process
of decay on the claim and I thought this might provide a backstop for goethite eroding down
the hill.
I found a couple of amazonite
crystals right at the base of the stump so I dug down and uphill from the
stump.
The goethite we had found before at this site was in strips of sand between feldspar and quartz.
I soon started hitting some goethite
specimens near the bottom of a sandy area above some scree.
I found about 10 specimens near the stump before
the dig played out. The goethite needles were somewhat worn (too be expected as
they traveled down the hill), but large and intricate enough to get my
attention.
I took home the specimens and cleaned
them up.
I noted one goethite specimen had a lot
of quartz on it which turned out to be onegite (quartz with goethite inclusions). A fairly nice find.
The next trip out Austin and I went digging together.
It was cold and windy with a little ice mixed
in along with a biting rain.
We
outlasted the weather but wondered when summer would arrive.
I dug in another’s previously dug hole. I dug
down all the way to the bottom of the pocket and found a few straggler smoky
quartz crystals.
Another area seemed to
be a rather new dig and it was quite shallow. The excavation looked like a
two person dig with pits on both sides of some untouched ground in between. There
was a bit of grass growing in the dig debris so I’m guessing someone dug there
a year ago or so. I dropped my pick axe into the undisturbed area in between
the digs and crystals rolled out of the side of the dig.
I think whoever dug there got to within an
inch or two of this pocket.
A sure sign
of a pocket is usually red clay/dirt and there was plenty of red dirt leaching
out of the island between the two holes.
I got a few collectible crystals out of this pocket.
Most of the smoky quartz crystals had milky
white overgrowth on the terminations which makes them somewhat different and more
desirable to me.
I prospected another
area where someone else had stopped digging bull quartz running up the
hill.
I found a lot of quartz fragments
and one crystal.
Austin found a couple
microcline crystals in the same area. The icy rain began to fall in earnest and
the wind kicked up, we decided we’d had enough for that day.
I’ll have to return to this spot another time
and continue prospecting it.
Trip 3&4.
I
visited a site I hadn’t dug for nearly 2 years.
The dig site was grown over with weeds.
I
recalled I wanted to revisit this site as I had found some nice small amazonite
crystals there a couple years ago.
I previously quit
the dig as I had run out of pegmatite, but float crystals above my dig brought
me back to this area.
I continued
digging up the hill and went about 6 feet up the hill digging down about 2 feet
as I went.
Suddenly the scree started to
firm up into a weak pegmatite and I noted the color of the dirt was changing to
a reddish color (good sign).
As I dug I
hit a sheet of thin quartz nearly vertical in the ground. I pulled out the
quartz and there were amazonite crystals imbedded in the back of the
quartz.
I found a few single amazonite
crystals here.
Unfortunately almost all
the amazonite was frozen/encased in the quartz so that no plates were found.
As I dug out the quartz, it
ended about 4
feet below the surface.
At the bottom
there were a couple tabular smoky quartz crystals but nothing really collectible.
This spot kept me busy for the day and I did
get a few crystals out of it, but overall it was disappointing.
One particular crystal I felt compelled to
show the claim owner.
When digging on
somebody else’s claim (with permission) it’s generally agreed that if you find
something good the claim owner has first right of refusal.
Well, I’m happy to say the claim owner told
me I could keep the amazonite baveno pictured below, so I got a nice addition to add to my collection.
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Amazonite Baveno Twin, found, cleaned, displayed |
Trip 5. Mostly prospecting this day and it wasn’t til 2PM
that I found something worth digging into. I decided to poke around a big
burned out tree.
Almost immediately I
found a 3 inch smoky quartz crystal near the base of the tree and decided to
dig in up the hill from the find.
Within
a couple minutes I was popping out well defined microcline crystals. As I dug
down a bit I was rewarded with quartz crystals below the microcline.
As I dug I hit a fairly large root from the
old burned out tree.
My digging partner
Bob came a long and wondered how so many crystals could come out of such a
small pocket.
It was a bit perplexing
but it quickly dawned on me that the large root from the dead tree was taking
up much of the space of the old pocket.
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Pocket material from trip 5 |
As I chopped out the root I found a few more crystals underneath with
pseudomorphs of goethite or limonite after a carbonate.
You can read more about pseudomorphs in some
of my other posts.
See Blog post: “Pseudomorph
Sunday or a Return to Iron Hill”, dated 9/1/2017.
Trip 6.
It was a
fairly windy day, which stirred up quite a bit of dirt.
I went with Austin this day and once again
did a lot of prospecting.
I found some
nice specimens but no pockets.
Austin
kept busy most of the day chasing a quartz seam with an occasional crystal
tease.
It looked good but produced little. Of most interest to me were a
couple large smoky quartz crystals, some ugly microcline crystals tending
towards amazonite color and a few fluorite crystals.
The most promising area was where I found the
fluorites at the end of the day.
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Some 1.5 inch fluorites (nice for L George) |
I had
dug in this area before and found goethite and some small smoky quartz
crystals.
I often find fluorite and
goethite together as they are both hydrothermally produced minerals.
I found 3 fluorites and one pretty intact
goethite group. Thunder started
rumbling and it was getting close to quitting time so I buried my dig intending
to go back soon to see what’s up the hill from this promising spot.
I guess that will be trip 7 for June.
Looks like trip 7 will qualify for it's own post. Went back and found so much goethite I can probably start an iron mine. The smoky quartz crystals were fairly plentiful as well.