Black glass with a distinct blue color


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Black glass with a distinct blue color

by Crystal
(Outer Banks, NC USA )

Hello-

I am a sea glass collector and most of my finds have been along the shore line of the Outer Banks in NC and the river banks of Virginia.

Today, I feel I found something remarkable - it's a black piece (dark green), sizable, but looking at it, it has a bluish tent. I thought it was a piece of plastic due to the color until i picked it up and held it up to the sun - it's dark green.

I'm wondering what the blue tent to it could be. It is obviously very old - it's a very rare find. I would really like to know what the blue is from.

Any help would be greatly appreciated. I will take a photo and send it tomorrow. I am in need of a usb to connect my camera and will have that tomorrow.

Thanks!

Crystal

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Black glass with a distinct blue color

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Feb 16, 2012

blue color on black bottles
by: Anonymous

On black glass bottoms, the blue color is from where the rod was inserted, I believe it is called a pontil mark. very old

Feb 07, 2011

Virginia beach glass
by: Anonymous

I found a piece like that on the Chesapeake Bay, is your piece really porous? When I picked it up, I thought it was plastic too.

I didn't really check it out until later that day when the piece was dry.

I'll try to get a good picture but my camera sometimes has a bit of an attitude problem :)

Nov 28, 2010

Just a guess
by: Anonymous

Hi Crystal -

My guess is that the blue color is coming from the iron that was used during that era in the making of black glass. Let me ask you . . . is the piece bigger than most other pieces you have found? The iron "preserves" the glass if you will and usually the black pieces are larger in nature.

I believe the era for black glass dates back to 1880 - that's when they stopped making it (or there abouts).

This sounds like a lovely piece . . . . post that picture when you have a chance.

Great find . . . . continued success with your finds.

A friend in the hunt,

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