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Reader comment on:
Developers Mull Uses for Rare Rock Excavated for Tunnels

Submitted by Duke, May 8, 2007 09:36

When I first moved to NY in the nineties I noticed a lot of shimmery sidewalks on my walks around the City. They seem to have disappeared lately. Does anyone know if the schist mentioned in the article is a common ingredient in sidewalk cement? Perhaps some of the big water tunnel digs provided the powdered form?

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Other reader comments on this article

Comment By Date

When I first moved to NY in the nineties I noticed a lot of shimmery sidewalks on my walks around...

Duke

May 8, 2007 09:36

One use of Manhattan Schist not mentioned in the Sun story was that it was the major stone for the... [MORE]

Nathan Glazer

Apr 27, 2007 17:57

I was really impressed by the possibilities of recycling the Manhattan schist rock from the soon to be excavated 2nd... [MORE]

Robert Gilmore

Apr 26, 2007 17:39

That's the sort of thinking that should go into major projects like this. Even if the rock is not of... [MORE]

Gary Reilly

Apr 26, 2007 11:39

Build a land bridge to Governor's Island [MORE]

Jaded New Yorker

May 8, 2007 19:17

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