Glass

Glass was a hard, brittle, transparent or translucent material that was used for making a great variety of objects, such as windows,^[1] starship viewports,^[2] ornamental chandeliers,^[3] jars,^[4] drinking vessels,^[5] doors,^[6] bottles, statuettes,^[7] and kaleidoscopes.^[8] Glass could be used to create panes that were partially reflective and partially transparent, allowing viewing from the darkened side but not vice versa.^[9] Glass could form naturally, as a product of volcanic activity,^[5] or when a meteorite impacted the ground.^[10]