['graphics/icons/alien/alien-blue-alloy.png', 'graphics/icons/alien/alien-orange-alloy.png', 'graphics/icons/brass-gear-wheel.png', 'graphics/icons/calcium-chloride.png', 'graphics/icons/carbon.png', 'graphics/icons/ceramic-bearing-ball.png', 'graphics/icons/ceramic-bearing.png', 'graphics/icons/cobalt-oxide.png', 'graphics/icons/corundum.png', 'graphics/icons/gems/amethyst-3.png', 'graphics/icons/gems/amethyst-4.png', 'graphics/icons/gems/amethyst-5.png', 'graphics/icons/gems/amethyst-ore.png', 'graphics/icons/gems/diamond-3.png', 'graphics/icons/gems/diamond-4.png', 'graphics/icons/gems/diamond-5.png', 'graphics/icons/gems/diamond-ore.png', 'graphics/icons/gems/emerald-3.png', 'graphics/icons/gems/emerald-4.png', 'graphics/icons/gems/emerald-5.png', 'graphics/icons/gems/emerald-ore.png', 'graphics/icons/gems/ruby-3.png', 'graphics/icons/gems/ruby-4.png', 'graphics/icons/gems/ruby-5.png', 'graphics/icons/gems/ruby-ore.png', 'graphics/icons/gems/sapphire-3.png', 'graphics/icons/gems/sapphire-4.png', 'graphics/icons/gems/sapphire-5.png', 'graphics/icons/gems/sapphire-ore.png', 'graphics/icons/gems/topaz-3.png', 'graphics/icons/gems/topaz-4.png', 'graphics/icons/gems/topaz-5.png', 'graphics/icons/gems/topaz-ore.png', 'graphics/icons/glass.png', 'graphics/icons/grinding-wheel.png', 'graphics/icons/lead-oxide.png', 'graphics/icons/lithium-chloride.png', 'graphics/icons/lithium-cobalt-oxide.png', 'graphics/icons/lithium-ion-battery.png', 'graphics/icons/lithium-perchlorate.png', 'graphics/icons/nitinol-bearing-ball.png', 'graphics/icons/nitinol-bearing.png', 'graphics/icons/nitinol-gear-wheel.png', 'graphics/icons/ore/gem-ore.png', 'graphics/icons/plate/aluminium-plate.png', 'graphics/icons/plate/brass-plate.png', 'graphics/icons/plate/bronze-plate.png', 'graphics/icons/plate/cobalt-plate.png', 'graphics/icons/plate/cobalt-steel-plate.png', 'graphics/icons/plate/copper-tungsten-plate.png', 'graphics/icons/plate/electrum-plate.png', 'graphics/icons/plate/gold-plate.png', 'graphics/icons/plate/gunmetal-plate.png', 'graphics/icons/plate/invar-plate.png', 'graphics/icons/plate/lead-plate.png', 'graphics/icons/plate/lithium-plate.png', 'graphics/icons/plate/nickel-plate.png', 'graphics/icons/plate/nitinol-plate.png', 'graphics/icons/plate/silicon-plate.png', 'graphics/icons/plate/silver-plate.png', 'graphics/icons/plate/tin-plate.png', 'graphics/icons/plate/titanium-plate.png', 'graphics/icons/plate/tungsten-carbide-plate.png', 'graphics/icons/plate/tungsten-plate.png', 'graphics/icons/plate/zinc-plate.png', 'graphics/icons/polishing-compound.png', 'graphics/icons/polishing-wheel.png', 'graphics/icons/powdered-silicon.png', 'graphics/icons/powdered-tungsten.png', 'graphics/icons/salt.png', 'graphics/icons/silicon-carbide.png', 'graphics/icons/silicon-nitride.png', 'graphics/icons/silicon-wafer.png', 'graphics/icons/silver-nitrate.png', 'graphics/icons/silver-oxide.png', 'graphics/icons/silver-zinc-battery.png', 'graphics/icons/sodium-hydroxide.png', 'graphics/icons/steel-bearing-ball.png', 'graphics/icons/steel-bearing.png', 'graphics/icons/steel-gear-wheel.png', 'graphics/icons/titanium-bearing-ball.png', 'graphics/icons/titanium-bearing.png', 'graphics/icons/titanium-gear-wheel.png', 'graphics/icons/tungsten-gear-wheel.png', 'graphics/icons/tungsten-oxide.png']