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| Mystery nephrite jade carving |
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Posted By: wingchuntaiji Posted Date: Feb 02, 2009 (01:51 AM) |
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Message Haha! I actually had photo-copied the whole Gu Yu To Pu in the early 1990's. It took two persons, two copiers, and almost one whole day to do that! The books were extremely rare, but not copy-righted! The photo-copies costed a lot of money! Raised crystals is in fact an official geological terminology that most jade experts are not aware, or don't agree on jades. Water can sip through micro-fissures on jade surface and alter the mineral around the crystals(such as pyroxene or tremolite)and turn it into a clay-like substance that expands and pushes the crystal out of the jade surface. I personally had handled thousands of jades over the last 40 years. Most of the jades I handled were Shu-Keng or Chuan-Shi-Gu. I had seen natural raised crystals on Sheng-Keng, but I did not know how to explained that phenomenon when I was young. I have not been active in jade study for quite a while due to other priorities in life! Post a Response |
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