Significance of the green stone?

[Findegil]

It seems possible for me that the mouth of Sauron refered to nither to the Elessar not to the Elendilmir but to the possesion and us of the palantir. Aragorn had wrestled the Orthanc stone from Saurons controll. That he could do that was a remarkable sign for his real identity, espcially for Sauron. So what he was trying to do was to play down that defeat Aragorn had given him.

In addition the discription as "elfish glas" does fit the palantir much better than either Elendilmir or Elessar which both were of elfish production as well but were never call glas.

Respectfully
Findegil