Does Cosmic mod have items that are unique to that mod, or is it just different items you can make your tools out of?
It adds new resources you can make tools out of.
Copper is more common than iron, but is slightly worse.
Mythite appears at high altitudes exclusively. It's faster than Diamond, has more durability, and more rare.
Unobtanium appears at low depths. It has the speed of Mythite, twice the durability of Mythite, and it's very rare.
Infinitium appears at bedrock level. It's extremely rare and scarce. It destroys blocks instantly and it has infinite durability, but I've asked the creator to nerf Infinitium a little bit.
The gems are totally decorative and are in the frequency table of Lapis Lazuli. Quartz is see-through like glass but it can be reclaimed and can resist explosions better. Almost all of the new materials can be made into decorative blocks.
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