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| Re: Really great jade pieces or fakes? |
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Posted By: wingchuntaiji Posted Date: Jan 03, 2008 (11:25 AM) |
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Message I think that these are two totally different songs. You probably have no idea of what raised crystals are. Naturally raised crystals are caused by hydration that the water sipped through micro-fissures of the jade's surface and altered the minerals around and underneath the tremolite crystals into a clay-like sustance that expanded and pushed the crystals out of the jade surface. Raised crystals induced by acid is a totally different ball game. It can easily be identifed because all of the raised crystals of the large jade surface area would protrude out of the jade surface in a different way. While naturally hydrated raised crystals are resulted from the water sipping in through the micro-fissures, only the jade surface around the micro-fissures would have raised crystals. Therefore the naturally raised crystals are scattered sporadically. Yang Boda had talked about that the fakers would attempt to put rubber sealants to certain areas of the jade surface before acid treatment to mimmick naturally sporadic hydratic raised crystsals. But it is easily identifiable with experience. I have read that serpentine resist acid more than nephrite. Serpentine would not have been strong enough to hold so many swivel parts on a thin body. It is difinitely not bowenite that is a harder variety of serpentine. It does not appear to be bowenite. The jade of certain localities can be identified through comparisons to their X-Ray Spectroscopies to the established database of jades from different localities. It is not that much of a deal. Hetian jade has a wide range of colors. I did not see anyone had mentioned in the Chicochai jade forum that these bis were originally white Hetian jade. I am a traditional collector of dynastic jades, and I go for the beauty of the jades. I, like most of you, try to avoid jades that are heavily weathered. It started only not too long ago that the Western market demanded weathered jades. I am not a business associate of any seller in the Chicochai jade forum, and I have no conflict of interest. I just want to say what I think is correct with my 40 years experience as a treasure hunter, gemologist, and jade collector. I only go for truth-finding! Happy New Year! Post a Response |
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