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Thanks for your interest, Andrew. No, I don't see any evidence of organic material. There is an interesting difference between the two large skulls, with the Cobalt blue one being beautifully polished on the inside down to the depths of the eye sockets, the clear glass one not. That is why you see the rough surface through from the outside only on the clear skull. On the cobalt skull you can only see circular saw marks deep in the large hole, where there is also some shatter, causing Newton's rings.

I presumed that the central hole was for visual effect, and that the cobalt blue piece, being from a rarer glass and worked much better, was for someone very important. Clearly they used a circular drill bit of 5.7 to 6 cm in diameter. This could have been metal or even bamboo, inlaid with micro-diamonds, which are absolutely essential to have carved this pure silica glass. But obviously the hole could also have been used to mount the skull on a pole, perhaps for display prior to burial. Speculation, of course, as we weren't there!

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Subject Views Written By Posted
Hongshan Skulls - glass and other 2447 drdavidanderson 23-Feb-18 14:26
Re: Hongshan Skulls - glass and other 460 Andrew_W 25-Feb-18 05:58
Re: Hongshan Skulls - glass and other 461 drdavidanderson 25-Feb-18 11:19
Re: Hongshan Skulls - glass and other 421 JFG 28-Feb-18 16:17
Re: Hongshan Skulls - glass and other 441 JFG 27-Feb-18 02:05
Re: Hongshan Skulls - glass and other 472 drdavidanderson 27-Feb-18 08:07
Re: Hongshan Skulls - glass and other 428 JFG 28-Feb-18 16:01
Re: Hongshan Skulls - glass and other 817 drdavidanderson 28-Feb-18 16:44


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