Mirror Lab staff finish placing the first layer of glass on GMT mirror 5’s mold.
Checking for Space
Mirror Lab staff review the glass placed in the mold, checking for space for the last pieces of glass for GMT mirror 5.
A staff member takes a closer look at the glass chunks in mirror 5’s mold, checking for space.
The Final Piece
Mirror Lab staffer Linda Warren places the last piece of glass into the mold.
Nearly 20 Tons of Glass
The GMT mirror 5 mold filled with 38,580 lbs. (17,500 kilograms) of glass, ready for the lid to be placed.
Ready for the Lid: Top View
The glass-filled mirror mold, seen from above.
Lowering the Lid
The lid of the furnace for GMT mirror 5 positioned over the furnace, ready to be lowered in place.
Ready to Cast
The GMT mirror 5 furnace fully assembled and ready to start.
University of Arizona Casting Crew
The University of Arizona casting crew. From left to right: Ray Perry, Damon Jackson, Linda Warren, Stuart Weinberger, Philip Muir, Randy Lutz, Pat Peak, John Martin, Diana Vargas, Britt Kayner.