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Collecting quartz on the Little Falls dolostone
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Chris Rayburn




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PostPosted: Nov 13, 2014 06:40    Post subject: Re: Collecting quartz on the Little Falls dolostone  

An enjoyable read as always, Vic. And season's greeting back at you.
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vic rzonca




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PostPosted: May 10, 2015 23:12    Post subject: Re: Collecting quartz on the Little Falls dolostone  

It's been a hell of a winter here in the great north east, as oxymoronic as that sounds. The snow is gone, didn't really have much of a mud season and now it's time to see what help Jack frost has been over the winter.


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Looking south from nearly the hight of land on the way out of the town of Fonda.
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Farmland, much of it worked by the Amish, on the way up to the dolostone.
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A trillion Triliums.
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They don't last very long, going from white, to pink, to wilted in a day it seems.
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The Trout Lily.
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Ground score.
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Dolostone and silica.
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 Description:
This image shows the sedimentary nature of the Little Falls dolostone. The exposed section is about 5' high and clearly shows a foamy silicified stromatolithic layer below a finer grained strata. The days digging began to the right of this corner.
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 Description:
After removing a block that Jack had loosened for me, I was presented with a nice little surprise.
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 Mineral: Quartz
 Locality:
Fonda, Mohawk, Montgomery County, New York, USA
 Dimensions: @ 12 cm.
 Description:
 Viewed:  14747 Time(s)

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The reverse side. Very dirty.
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There is an article on finding a pocket on this site, this might be better off there. How to find a pocket? Take a rock and hit it with a hammer.
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And.
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The White on this site is only a little less brutish.
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Mike Wood




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PostPosted: May 11, 2015 15:08    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Looks like a decent start to the season Vic, and I like your flower pics! Yes indeed, we appear to share the same philosophy regarding how to find a pocket - find a rock - bash it with a hammer - see what's inside...! Mind you, this approach seems to work best if
a: there are a lot of rocks
b: the pockets are small

Cheers ;-)

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vic rzonca




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PostPosted: May 31, 2015 09:31    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Yes Mike, pretty fair start but it can all go bad real easy.


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 Description:
We seem to have run upon a very hard section that splits, with much force, in inopportune ways, causing us to employ extremely sketchy operations. It didn't work. There is a need to enhance our shim inventory.
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In decending order left to right. 100 ton, 60 ton, 30 ton psi. lifting force. All in vain today.
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 Description:
Life is dangerous. It's more dangerous when you're foolish. None of it moved. The aluminum blocking deforms and they stick to each other so if there is a blow out it doesn't send the blocks flying. The stickyness of the alloy slows the slipping moment.
 Viewed:  14475 Time(s)

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 Mineral: Quartz
 Locality:
Fonda, Mohawk, Montgomery County, New York, USA
 Dimensions: 1.5 cm.
 Description:
Water included. Wrong light setting.
 Viewed:  14451 Time(s)

IMG_1892.JPG


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Mike Wood




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PostPosted: May 31, 2015 10:49    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Wow Vic, I don't think I would have been that close to the jack! I can't stop cringing when I see that photo. Didn't you have a longer hose? Time to get out the 28lb sledgehammer and some wedges?! Or drill it and use expansion grout, perhaps.
Careful now!

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vic rzonca




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PostPosted: May 31, 2015 12:03    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Have no fear. It's not as bad or stupid as it looks (open for debate). Each push on the pump moves the piston maybe a millimeter so you can keep an eye on things and bail anytime. The key is the alloy blocking. They are light, very malleable and don't slip catastrophically as steel on steel would do. They also conform to the dolostone very nicely so rather than chip off flakes or dinner plating it, it deforms and more gently grips the stone. Hammer, wedges, pins and feathers hurt my carpal tunnels. Drilling hurts my ears. We have longer hoses. I like to get close to my work, thanks for your concern. By way of disclaimer: All operations displayed here are done by trained professionals with years of misguided endeavor and should not be tried at home. Thank you.
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vic rzonca




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PostPosted: May 31, 2015 12:27    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Can you identify this?


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Just kidding.
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PostPosted: May 31, 2015 15:06    Post subject: Re: Collecting quartz on the Little Falls dolostone  

In https://www.mineral-forum.com/message-board/viewtopic.php?p=45570#45570 vic rzonca wrote:
Can you identify this? (Just kidding)

Rzoncite?

Please make the proofs of hardness, streak, acids reaction and after all these tests throw them all to the WC and then pull the chain ;-) ;-) ;-)

Thank you in advance to clear out them all, the humanity will feel better without them...
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vic rzonca




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PostPosted: Jun 01, 2015 09:19    Post subject: Re: Collecting quartz on the Little Falls dolostone  

All tests point to the WC. Having a little trouble with the chain pull test.
I love this forum. (Thanks for putting up with me.)



IMG_0393.JPG
 Mineral: Quartz
 Locality:
Fonda, Mohawk, Montgomery County, New York, USA
 Dimensions: to 10 cm.
 Description:
Keepers.
 Viewed:  14242 Time(s)

IMG_0393.JPG


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Mike Wood




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PostPosted: Jun 01, 2015 13:50    Post subject: Re: Collecting quartz on the Little Falls dolostone  

"Can you identify this? (Just kidding)" - Looks like aquarium gravel to me :-)

I hear what you're saying about the hydraulic jacks and aluminium shims (I'd call 'em blocks), and I 'get it' that they don't slip because they are aluminium. Thanks for the further reassurance and explanations!
I have used those kind of jacks when I was doing rope-access work, taking down loose bits on cliffs, after we had given up with the five foot pinch bar; but of course the offending rock was already 'loose' with a big crevice behind it.

I like the keepers.

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vic rzonca




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PostPosted: Jun 01, 2015 15:17    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Really not good enough for the fish tank, Mike. Now wait. Hanging from a rope, with a five foot bar, hydraulic ram, sending truck sized scale off the pitch? My second question is, did you find anything?
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PostPosted: Jun 01, 2015 15:29    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Nice specimens Vic! It looks like really hard work compared to what I am used to. Thanks for sharing.
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PostPosted: Jun 01, 2015 15:43    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Nothing is easy in the land of milk and honey, Pierre. PM me your address and I'll look into airline fares. Got a pallet on the floor for me?
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PostPosted: Jun 01, 2015 16:44    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Hi Vic, yes I used to do that sort of work, when I was a bit younger. Not all contracts were like that, did some drilling, rock-bolting, cables and netting; also erecting rock-catch fences. But the six-week job we got to do each winter for eight years or so was the biggest and best. The natural limestone cliffs are up to 400' high (130m), and after some time I actually got used to the height and scare factor! It helped when they (after a couple of years) gave us an extra rope for safety reasons...
To answer your second question, I didn't find anything at all interesting mineralogically speaking, though I did work on other cliffs which were more bountiful. Best thing was a vein of albite (in a slatey rock) with occasional small pockets containing axinite crystals - but only to about a quarter inch (6mm). I did a fair amount of rock removal to achieve this but had to give up due to lack of time, plus the very small cliff I was working on above the very public footpath (closed off to public at the time) was starting to look somewhat 'profiled'.

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PostPosted: Mar 18, 2016 22:31    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Just a couple of teasers from last season. Things are thawing fast so the urge to dig grows.


IMG_2785.JPG
 Mineral: Quartz
 Locality:
Fonda, Mohawk, Montgomery County, New York, USA
 Dimensions: 20 cm.
 Description:
 Viewed:  12599 Time(s)

IMG_2785.JPG



IMG_2781.JPG
 Mineral: Quartz
 Locality:
Fonda, Mohawk, Montgomery County, New York, USA
 Dimensions: 20 cm.
 Description:
 Viewed:  12617 Time(s)

IMG_2781.JPG



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 Description:
Dig, we must.
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PostPosted: Mar 19, 2016 01:55    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Fantastic specimen Vic! I am drooling all over my computer:-)
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PostPosted: Mar 30, 2016 06:10    Post subject: Re: Collecting quartz on the Little Falls dolostone  

The field collecting season is upon us here in the great North East. Good luck everyone.


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I think we're into something here.
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PostPosted: Mar 31, 2016 05:16    Post subject: Re: Collecting quartz on the Little Falls dolostone  

vic rzonca wrote:
The field collecting season is upon us here in the great North East. Good luck everyone.

New season but old techniques, uh? ;-) ;-)
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PostPosted: Mar 31, 2016 06:42    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Hi Vic, is that your team? :-) When you do come to visit, will you please bring them along, we can use them well:-)
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PostPosted: Mar 31, 2016 11:37    Post subject: Re: Collecting quartz on the Little Falls dolostone  

That's one place you can collect to avoid the scourges of spring in the northeast: black flies and mosquitoes.
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