Fun facts about Adamantine based only on the contents of the raw files:
- It melts at 8333 C (15032 F), so you'd need to throw it into the sun in order to melt it.
- If it did melt, its density would increase 13x from 0.2 g/cm3 to 2.6 g/cm3. Most normal substances decrease in density slightly when they melt. This means that a melting adamantine bar would shrink.
- Adamantine is only ~10x stronger than steel, more or less, but it is perfectly rigid. How adamantine thread works is beyond me.
- Adamantine can be made ~10x sharper than most metals, according to the max edge.
- Adamantine has a specific heat 2x higher than water, and 15-20x higher than most other metals.
Strange consequences of these facts:
- The speed of sound in air is 343 m/s (1126 ft/s), in water is 1484 m/s, and in iron is 5120 m/s. According to my calculations, the speed of sound in adamantine is at least 63200 m/s, due to the high stiffness and low density. If adamantine is perfectly rigid, as shown by having 0 strain at fracture in the raw files, then the speed of sound in the metal approaches the speed of light. Adamantine musical instruments would produce ultrasonic vibrations, and cut off the fingers of the musician.
- Adamatine would make for excellent crowbars/prybars, because you could use a 20 foot long pole to pry open a heavy stone door and it wouldn't bend the tool.
- When adamantine does break, it would suddenly shatter like glass without warning, because it is so rigid and because it stores so much internal energy. The resulting shrapnel would be nasty, good thing it is next to impossible to break...
- Even a perfectly sharp blade needs a bit of force to cut, as you have to force the flesh/stone/metal/etc. to part so the blade can move forwards. Since adamantine has low weight, there would be little momentum in the sword swing and all of the force would come from the user.