Name: Gray Agate (gray chalcedony)
Origin: I.R. Iran, west of the Kermanshah city,
        the "sarab ghanbar" hills.

Mineral Label in my stone collection: 01
Dimensions: 150 x 100 x 90 mm
Supplied From: Kermanshah's western hills.
Comments: I found this myself when I was climbing there,
	  but maybe this specimen is not a pure and nice kind of
	  chalcedony.
 
Composition: Microcryst. quarts
IX System: --
Special Gravity: --
Hardness: --