I have returned from some research in Italy. Our staff is on vacation.
In the mean time, AP contacted me on my cell phone, (the journalist was surprised to hear that I was standing below the temples of Demeter and Poseidon at Paestum), about discoveries of an ancient quarry in Jerusalem that had once produced 20 ton stones. No other buildings during the Second Temple period would have been built of such stones other than the Temple and its supporting walls. The nature of the stone, its hardness and color, is important for confirming the find. See AP article.
More coming soon.