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Jade in MA?

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mearic71
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« on: August 16, 2013, 09:13:16 am »



I found a dark (looked black at time) with light green material on it.
I've had it for a while, but finally cut a slab off it last week. The whole rock is a deep translucent dark green.

My question is: Can jade or jadeite be found in MA?

Thanks
Mike
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Haderly
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« Reply #1 on: August 16, 2013, 10:24:48 am »

Not sure about jade but here is a list of what can be found. If you click on the camera symbol you get pictures of actual specimens found in Massachusetts. If you search Mindat with a more specific location you may have better luck determining what you have. It is also great way to find new places to search. There are a lot of possibilities like Diopside and Epidote but a picture of the rock would sure help to narrow it down.

http://www.mindat.org/loc-15054.html
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mearic71
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« Reply #2 on: August 16, 2013, 10:31:41 am »

Thanks I will post picture tonight.
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sealdaddy
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« Reply #3 on: August 17, 2013, 01:07:56 pm »

Thanks I will post picture tonight.

Ask our member Alvin.
He's a rockhound and dealer in the area.
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jakesrocks
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« Reply #4 on: August 17, 2013, 02:00:12 pm »

No locations for Jadeite or Nephrite given on Mindat for massachusetts.
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« Reply #5 on: August 17, 2013, 05:16:38 pm »

It might also be another member of the amphibole family with green color that's been mistaken for jadeite/nephrite. Tremolite and other amphibole members do occur all over the northeast. That said, there is also some nephrite been claimed to be dug in Massachussets over the years and it is not impossible. Some similar materials such as pyroxene (aka, canaanite) from there have also been misidentified as nephrite, and it can be difficult to separate some of them.
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« Reply #6 on: August 17, 2013, 08:44:48 pm »

You might have a nice grade of Bowenite. You can find it in Mass and New England. I have some from Vermont that is deep black-green. It is translucent when slabbed. If you grind some of it on a cabbing wheel it will have a soapy slippery feel to it. Mine has black flecking in it and tiny pinpoints of green. Is yours from a dug deposit or an alluvial gravel deposit? The reason I ask, is that I have found some in river gravels in northern Vermont. Eric(Ajo)
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mearic71
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« Reply #7 on: August 19, 2013, 05:33:52 pm »

It was found in northwestern MA in a river, there was more. It does not feel waxy to touch. It does have dark flecks in it. I'm a novice at best, getting back into being a rock hound because of my 6 year old. Thanks for the help everybody.


* 1.jpg (444.52 KB, 600x600 - viewed 6 times.)

* 2.jpg (311.46 KB, 600x600 - viewed 11 times.)
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Ajo
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« Reply #8 on: August 19, 2013, 06:09:53 pm »

Nice Find! Eric(Ajo)
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Eric

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lithicbeads
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« Reply #9 on: August 31, 2013, 06:59:43 pm »

 It sure looks like serpentine with chromite or iron  inclusions. The glaciers went all the way to north Jersey so they could have easily brought you this gift from the deposits in Vermont.
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mearic71
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« Reply #10 on: September 05, 2013, 08:12:55 am »

The nice thing is, there was a lot more where I found it. I need to go back.
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mearic71
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« Reply #11 on: September 17, 2013, 12:00:58 pm »

It sure looks like serpentine with chromite or iron  inclusions. The glaciers went all the way to north Jersey so they could have easily brought you this gift from the deposits in Vermont.

Just picked up my first cabbing machine and upon polishing the stone. The dark inclusions shine up like little silver specks. They might iron.
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lithicbeads
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« Reply #12 on: September 17, 2013, 01:03:34 pm »

 Both iron and chromite are frequently found in jade and serpentine and they would be quite hard to distinguish.
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mearic71
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« Reply #13 on: September 03, 2014, 07:40:38 pm »

Is there any value in Bowenite, other than being a cool material to make stuff out of?
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Michael S Hoover - Redrummd
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« Reply #14 on: September 03, 2014, 09:46:06 pm »

Two test to help determine what it is.

1)Does a magnet stick to it?  If it does it is likely not Jade.
2) How hard is it?  If below 5.5 MOHS it is likely not Jade.
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mearic71
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« Reply #15 on: September 04, 2014, 06:27:38 am »

From all the pics on the web I have seen, I think it is dark green bowenite, but it has small metallic specks in it. My magnet doesn't stick. I don't have a way to test hardness, unless there is a scratch test I can do. It does how shape fairly easily on my 100 grit wheel. It came from western MA. Greenfield area. If that helps.
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qtz2010
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« Reply #16 on: September 04, 2014, 11:56:49 am »

Hi, looks like the Williamsite variety of serpentine.
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itsandbits1
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« Reply #17 on: September 04, 2014, 01:15:40 pm »

try using a rare earth magnet to test the magnetic pull.
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mearic71
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« Reply #18 on: September 04, 2014, 05:10:19 pm »

I tested another piece, and It is getting a little pull off the magnet.
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itsandbits1
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« Reply #19 on: September 04, 2014, 05:35:22 pm »

leaning towards serpentine then but try scratching it with a good knife tip, if it scratches it's under mohs 5 but some serpentine runs up to 6 1/2. I find some around here that is as hard as nephrite.
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mearic71
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« Reply #20 on: September 04, 2014, 06:29:29 pm »

Just used a USN WWII Kabar to do a scratch test (probably not the best thing to do with an antique) But it scratched.
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itsandbits1
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« Reply #21 on: September 04, 2014, 08:20:54 pm »

so you can narrow it down a bit; you have the colour, approximate mohs, density can be figured pretty easily, appearance, translucency, you can check cleavage and breakage characteristics but it points a lot towards a variety of serpentine but I don't know the rocks of your area so there could be others.
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Michael S Hoover - Redrummd
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« Reply #22 on: September 04, 2014, 10:56:33 pm »

There is nothing wrong with cutting and polishing top quality Serpentine!
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mearic71
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« Reply #23 on: September 05, 2014, 07:17:06 am »

I have been practicing my stone carving skills with it. Making pendents for people.
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mearic71
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« Reply #24 on: September 06, 2014, 07:46:18 am »

Thanks everyone for your help, I think from what everyone has helped with and the research I have done on line. I'm leaning towards it being a uniform dark green form of Serpentine.
Thanks
Mike
P.S. I have a lot of it so if anyone wants to trade, let me know.
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itsandbits1
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« Reply #25 on: September 06, 2014, 08:29:55 am »

from the slab pic you posted, it should be making some nice looking peices.
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mearic71
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« Reply #26 on: September 06, 2014, 01:38:24 pm »

I have around 30lbs of it right now and might go back for more before winter hits. I need to find a way to cut the large chunks up , I don't  have a slab saw yet. I have a big tile saw, but i'm always nervous about cutting anything to big on it.
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« Reply #27 on: September 06, 2014, 01:57:33 pm »

I have around 30lbs of it right now and might go back for more before winter hits. I need to find a way to cut the large chunks up , I don't  have a slab saw yet. I have a big tile saw, but i'm always nervous about cutting anything to big on it.

I can cut a few large pieces for you on a share basis.
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« Reply #28 on: September 06, 2014, 03:38:49 pm »

Not that this terribly relevant to jade in MA. but there is a serious digger who comes to the Spruce Pine, NC show each year who showed me a large slice of very translucent jade which came from North Carolina. Like everything that he has he will tell no one where he finds any of his material.  If any of you go to the show, he is from Virginia and all that he sells is slabs and he has trays and trays of them on many 8' tables. It is sad, but he will likely go to his grave never sharing his locations. If anyone knows of the jade location in NC, many of us would love to know.
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« Reply #29 on: September 06, 2014, 06:37:16 pm »

Hi mearic71

I'm in Newton Ma and have a 14" slab saw,   and would be willing to trade slabbing  for rough.

David
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David

mearic71
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« Reply #30 on: September 06, 2014, 07:06:40 pm »

Thanks for the slabbing offers, I have a friend close to me with a slab saw. I want to give  him first shot at it. Plus I wont have to ship it. If he doesn't want any, I will be happy to trade someone for slabbing some of it.
Thanks
Mike
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zurn
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« Reply #31 on: December 04, 2015, 02:23:49 pm »

Im gonna keep my eyes open being from Boston
dont see much
but like you Mike Im a re-born rock hound
never know
nice find
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mearic71
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« Reply #32 on: December 09, 2015, 07:41:09 pm »

Thanks, I'm always looking for stuff around MA. I have now found some good sources for Chiastolites (cross stones). And may have found some quartz with black turmaline. I am looking again now to trade some of the serpentine in trade for slabbing.
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