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Subject:Rock Crystal Vessel
Posted By: George E Wed, May 20, 2015 IP: 24.190.84.18
This piece is about 3 inches high. It's very crusty. Any idea on age and purpose is welcome.







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Subject:Re: Rock Crystal Vessel, probably made of glass
Posted By: Super Tue, Jun 09, 2015
I believe this is a modern fantasy piece that was made of glass, not crystal, artificially made it appear to be a Neolithic piece. Unfortunately, one seldom see any Neolithic crystal piece resembles this.

Subject:Re: Rock Crystal Vessel, probably made of glass
Posted By: George E Mon, Jul 27, 2015
Thanks for your opinion Super. how can I tell the difference between rock crystal and glass?

Subject:Re: Rock Crystal Vessel, probably made of glass
Posted By: snap Wed, Jul 29, 2015
Using magnifying glass can usually see bubbles in glass.

Quartz ("Rock crystal") never has bubbles, but often can see internal linear crystallization. Does not corrode as some other stones do.

Strange discoloration on your piece is not typical of any stone or even of any glass. Should wash off pretty easily. For glass do not use water warmer than tepid room temperature.

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