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Collecting quartz on the Little Falls dolostone
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vic rzonca




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PostPosted: Dec 17, 2011 13:10    Post subject: Collecting quartz on the Little Falls dolostone  

Collecting quartz on the eastern edge of the Little Falls dolostone, in December.


IMG_0375.JPG
 Description:
Looking NW from the bench
 Viewed:  40759 Time(s)

IMG_0375.JPG



IMG_0372.JPG
 Description:
Not much to look at, really.
 Viewed:  40783 Time(s)

IMG_0372.JPG



IMG_0361.JPG
 Description:
30 ton ram setup, helps to loosen things up a bit.
 Viewed:  40794 Time(s)

IMG_0361.JPG



IMG_0362.JPG
 Description:
The pump section. The shims are aluminum as it deforms into the rock rather than slipping. We have 60 and 100 ton models-great help.
 Viewed:  40782 Time(s)

IMG_0362.JPG



IMG_0367.JPG
 Description:
What fun!
 Viewed:  40784 Time(s)

IMG_0367.JPG



IMG_0360.JPG
 Description:
Quartz pocket.
 Viewed:  40778 Time(s)

IMG_0360.JPG



IMG_0472.JPG
 Description:
Some of the find.
 Viewed:  40742 Time(s)

IMG_0472.JPG



IMG_0476.JPG
 Description:
Quartz
Fonda, NY., USA
Largest crystal, 2 cm.
 Viewed:  40803 Time(s)

IMG_0476.JPG



IMG_0480.JPG
 Description:
Anthraxsolite
Fonda, NY., USA
1 cm.
 Viewed:  40748 Time(s)

IMG_0480.JPG


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vic rzonca




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PostPosted: Jul 29, 2012 11:58    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Quartz hunting.


IMG_0770.JPG
 Description:
Use of the hydraulic ram to exploit weaknesses in the dolostone.
 Viewed:  39471 Time(s)

IMG_0770.JPG



IMG_0863.JPG
 Description:
Quartz
Fonda, New York, USA
Some of what was levered out. Fingers for scale.
 Viewed:  39533 Time(s)

IMG_0863.JPG



IMG_0867.JPG
 Description:
Quartz
Fonda, New York, USA
Some of what was levered out. Fingers for scale.
 Viewed:  39552 Time(s)

IMG_0867.JPG


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Pierre Joubert




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PostPosted: Jul 29, 2012 16:09    Post subject: Re: Collecting quartz on the Little Falls dolostone  

I love your entry! Love quartz. What an excellent way to break rock.
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PostPosted: Jul 29, 2012 16:13    Post subject: Re: Collecting quartz on the Little Falls dolostone  

And to think about 40 years ago, those rams were the state of the art in vehicle crash rescue, now that is a much better use. Love the crystals.
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vic rzonca




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PostPosted: Aug 01, 2012 20:09    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Pockets in the dolostone yield quartz.


IMG_0899.JPG
 Description:
One of the work areas. The larger pocket zone is low on the face, but many smaller, 10 cm. holes are above. The floor of the bench is the bottom of the formation and is barren.
 Viewed:  39385 Time(s)

IMG_0899.JPG



IMG_0898.JPG
 Description:
Pocket in a just released block.
 Viewed:  39399 Time(s)

IMG_0898.JPG



IMG_0894.JPG
 Description:
Close-up of the 20 cm. vug. In situ, the large quartz grew from the roof of the pocket, the block rests on it's side.
 Viewed:  39363 Time(s)

IMG_0894.JPG



IMG_0896.JPG
 Description:
6 cm. or larger, smoky crystal, still in the wall, growing from the roof.
 Viewed:  39398 Time(s)

IMG_0896.JPG



IMG_0900.JPG
 Description:
Another cluster in the same area. This one is milky.
 Viewed:  39370 Time(s)

IMG_0900.JPG



IMG_0903.JPG
 Description:
Quite a nice smoky, lose and lurking.
6 cm.
 Viewed:  39349 Time(s)

IMG_0903.JPG


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John S. White
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PostPosted: Aug 01, 2012 20:18    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Fantastic Vic, can't wait to see the piece with the large crystal in the vug once the reduction in size has occurred. Please let us know how you accomplish the reduction.
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Pierre Joubert




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PostPosted: Aug 02, 2012 03:09    Post subject: Re: Collecting quartz on the Little Falls dolostone  

John S. White wrote:
Fantastic Vic, can't wait to see the piece with the large crystal in the vug once the reduction in size has occurred. Please let us know how you accomplish the reduction.


Yes Vic, I am very curious to know how you intend to reduce those rocks to display, what I am sure will be very nice pieces. Could you send us some photos of the process once completed?

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vic rzonca




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PostPosted: Aug 02, 2012 08:09    Post subject: Re: Collecting quartz on the Little Falls dolostone  

You have both nailed it. Now what. First thing to do is nothing. Sometimes the act of releasing the blocks from their place of formation allows the dolomite to take a breath and cracks are either induced or enlarged, kind of self trimming to a point. Then diamond chain saws, careful chisel surgery or hydraulic trimming. Pesto!! It breaks right through the best part. Sometimes.
Mineral prep and presentation is an art and all respect to those who do it well. I've got piles of failed attempts.
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John Medici




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PostPosted: Aug 02, 2012 10:38    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Right on, Vic; best results seem to be to sit back and check the specimens visually for a while, before deciding on a point of attack for such quartz pockets.
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PostPosted: Aug 02, 2012 15:11    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Great report, Vic!
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vic rzonca




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PostPosted: Aug 03, 2012 10:32    Post subject: Re: Collecting quartz on the Little Falls dolostone  

A very useful tool for the field collector. The threaded adjustment allows for great flexibility, 0 to 18 cm. between anvils. Chinese made and rather stout, just turning the hand wheel sometimes is all that is needed for a trim, and the force of the hydraulics has scared me. I got this one from Dennis Beals and it has served me well.


IMG_0772.JPG
 Description:
The trimmer frame is about 40 cm. high by 35 cm. wide.
 Viewed:  39118 Time(s)

IMG_0772.JPG



IMG_0799.JPG
 Description:
A fruitful trim (or lucky). The quartz is about 6 cm. high.
 Viewed:  39140 Time(s)

IMG_0799.JPG


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vic rzonca




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PostPosted: Aug 26, 2012 08:47    Post subject: Re: Collecting quartz on the Little Falls dolostone  

More from the mine.


IMG_1003.JPG
 Description:
The crystals went that way.
 Viewed:  38732 Time(s)

IMG_1003.JPG



IMG_0999.JPG
 Description:
15 cm. quartz on dolostone, freshly mined with a quick cleaning.
 Viewed:  38762 Time(s)

IMG_0999.JPG



IMG_1002.JPG
 Description:
12 cm. quartz with a smaller friend, rests on an eatched calcite crystal and quartz druze.
 Viewed:  38710 Time(s)

IMG_1002.JPG


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John S. White
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PostPosted: Aug 26, 2012 09:05    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Those quartzes exhibit a really strange habit Vic. What a neat find.
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vic rzonca




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PostPosted: Sep 04, 2012 17:53    Post subject: Re: Collecting quartz on the Little Falls dolostone  

For a while now, off and on, we've found some rather odd floater quartz crystals at the site. This one qualifies as the oddest. After showing it to John White, I thought I'd have a good image taken to share with the forum. These fine shot's were taken by Jeff Scovil, at the East Coast show, far better than anything I could take, and much more informative than trying to explain an inferior photo. I would be interested in what you folks think might be the process that produced this form. Much of the quartz we find is associated with anthraxolite, a compact hydrocarbon that was present with the silicified fluids that grew the quartz. Many of the crystals found are the classic Herkimer form, no point of attachment, but this one is really something else. It would be interesting to know if anyone has ever seen another crystal of any species with a similar form. We have found a few of these. This, the best so far. I look forward to your input, and thanks for viewing.


2012-08-0079.jpg
 Description:
Quartz
Fonda, New York, USA
2 cm.
 Viewed:  38418 Time(s)

2012-08-0079.jpg



2012-08-0078.jpg
 Description:
Quartz
Fonda, New York, USA
2 cm.
 Viewed:  38405 Time(s)

2012-08-0078.jpg



2012-08-0077.jpg
 Description:
Quartz
Fonda, New York, USA
2 cm.
 Viewed:  38463 Time(s)

2012-08-0077.jpg


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Pierre Joubert




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PostPosted: Sep 05, 2012 00:45    Post subject: Re: Collecting quartz on the Little Falls dolostone  

vic rzonca wrote:
For a while now, off and on, we've found some rather odd floater quartz crystals at the site. This one qualifies as the oddest. After showing it to John White, I thought I'd have a good image taken to share with the forum. These fine shot's were taken by Jeff Scovil, at the East Coast show, far better than anything I could take, and much more informative than trying to explain an inferior photo. I would be interested in what you folks think might be the process that produced this form. Much of the quartz we find is associated with anthraxolite, a compact hydrocarbon that was present with the silicified fluids that grew the quartz. Many of the crystals found are the classic Herkimer form, no point of attachment, but this one is really something else. It would be interesting to know if anyone has ever seen another crystal of any species with a similar form. We have found a few of these. This, the best so far. I look forward to your input, and thanks for viewing.


Most unusual! I have never seen anything like that before.

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Riccardo Modanesi




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PostPosted: Sep 05, 2012 08:02    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Hi Vic and hi to everybody!
The last one you show is a very nice crystal! Inclusions should be very beautiful! If you have the possibility of showing us any photo about, don't hesitate to let us see it!
Greetings from Italy by Riccardo.

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Hi! I'm a collector of minerals since 1973 and a gemmologist. On Summer I always visit mines and quarries all over Europe looking for minerals! Ok, there is time to tell you much much more! Greetings from Italy by Riccardo.
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PostPosted: Sep 05, 2012 10:10    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Is a lovely specimen Vic, please publish it also in the A mineralogical trip through the states of USA - New York section, it will be a great addition for the New York state!
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PostPosted: Dec 03, 2012 23:42    Post subject: Re: Collecting quartz on the Little Falls dolostone  

A few from the bench.


IMG_0781.JPG
 Description:
Quartz
Fonda, New York, USA
A 14 cm. main crystal with a bit of dolostone matrix. Collected this season.
 Viewed:  36989 Time(s)

IMG_0781.JPG



IMG_0750.JPG
 Description:
Quartz
Fonda, New York, USA
6 cm. quartz with a fracture induced rainbow.
 Viewed:  36971 Time(s)

IMG_0750.JPG



IMG_0614.JPG
 Description:
Quartz
Fonda, New York, USA
6 cm. complex smokey crystal
 Viewed:  36975 Time(s)

IMG_0614.JPG


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PostPosted: Dec 04, 2012 02:32    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Nice find Vic! I especially like IMG_0750.JPG.
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PostPosted: Dec 05, 2012 08:43    Post subject: Re: Collecting quartz on the Little Falls dolostone  

Work on the bench.


IMG_1107.JPG
 Description:
30 tons of hydraulic push exploit an eroded area.
 Viewed:  36851 Time(s)

IMG_1107.JPG



IMG_1108.JPG
 Description:
Aluminum blocks allow flexibility at the jack point, as the jack has only a 4 inch lift.
 Viewed:  36849 Time(s)

IMG_1108.JPG



IMG_1111.JPG
 Description:
8 cm. quartz in a small pocket.
 Viewed:  36832 Time(s)

IMG_1111.JPG



IMG_1113.JPG
 Description:
Druzy quartz, the other part of the pocket.
 Viewed:  36834 Time(s)

IMG_1113.JPG



IMG_1114.JPG
 Description:
A tidy work place will soon be a mess.
 Viewed:  36846 Time(s)

IMG_1114.JPG



IMG_1109.JPG
 Description:
Part of a old stone wall at the site. Moss seems to love the dolostone.
 Viewed:  36836 Time(s)

IMG_1109.JPG



IMG_1121.JPG
 Description:
The moss was fat and happy on this December day, with late afternoon sun, waiting on the first snow.
 Viewed:  36852 Time(s)

IMG_1121.JPG



IMG_1122.JPG
 Description:
 Viewed:  36870 Time(s)

IMG_1122.JPG



IMG_1128.JPG
 Description:
 Viewed:  36886 Time(s)

IMG_1128.JPG


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