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Newgrange: quartz and granite wall
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Re: Newgrange: quartz and granite wall
Jul 20, 2016, 10:50
tiompan wrote:
He says " it decreased gradually in amount and extent until it virtually disappeared atK21 in the west and K 81 in the east “

There is no decrease , it's uniform .

Ah, sorry, I understand what you mean now. In the drawings he shows a section of the wall near the entrance and it's well over a foot, maybe near two feet thick so perhaps his interpretation was that the wall was mostly quartz right through at the entrance area but was only the surface layer further around, the thickness being filled out with ordinary cairn stones.
It does thin out though around K81, it's not so clear in the photo above but up close you can see it does start to gradually fade into ordinary stone and by the end of K81 there's very little quartz.

tiompan wrote:
Yes the shattered quartz was from the cutting but they never used in the experimental wall , it wouldn't have worked otherwise .

No , haven't seen the recent Ann Lynch .

It's interesting that she found a 'significant' amount of quartz in front of K79, further back than K81 where it currently stops, so regardless of the above the current presentation of the quartz shows the extent of the spread as thinning out before it actually did originally, rather than the other way around.
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