From MTG Salvation Wiki
The Quicksilver Sea. Art by Mark Tedin.
The
Quicksilver Sea is large body of liquid mercury on
Mirrodin. Islands of solid metal, probably tin, arise from the sea in strange formations. The
vedalken live in a massive structure called
Lumengrid, located somewhere near the shore of the Quicksilver Sea, while their
Neurok servants dwell in settlements of tin on the shore nearby. The Blue Lacuna, located beneath the
Pool of Knowledge, was in the general area of the Quicksilver Sea.
