T1503 Muscovite, Beryl var. Aquamarine
A terminated and unusually flattened aquamarine from what has arguably become the most iconic of the various Pakistani aquamarine localities, since its discovery in 1984.
This piece has the muscovite association that is considered typical for the location, and also has a bit of quartz attached to one side.
As a side note, this is the same locality that is notable for the pink fluorites and apatites.