Signified by a light
blue diamond symbol, you'll usually need to find some form of clue to initiate a quest - this will sometimes be a note left in a house, or from an NPC in the world.
Not exact matches
We don't know exactly what it contains, but we can guess based on the
symbols on its box art: The first, a golden eye, represents Osiris, while the second, a
blue winged
diamond, represents Rasputin.
Instead, they are all bricks adorned with different colors and
symbols (like red blocks with hearts, yellow blocks with stars, and
blue blocks with
diamonds.
My annotations represent the thermal radiation from the Earth as a pink pentagon with the designation 7μ for the left - hand portion, a
blue diamond 10μ for the center portion, and a dark
blue hexagon 15μ for the right - hand portion, but please interpret these
symbols to include all the radiation in their respective portions of the longwave band.