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December 14, 2018, 01:42:21 am
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Jade in MA?

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Author Topic: Jade in MA?  (Read 1092 times)
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 9 times.)

* 2.jpg (311.46 KB, 600x600 - viewed 13 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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