Part one of term paper
In 1890, a lone prospector discovered a lump of iron weighing 22.7 kg in a Japanese mountain range, a rock which is now on display at the National Science Museum in Tokyo. Several years after discovery, scientists learned it was an iron meteorite, so called because many meteorites have have large iron contents. However, about a quarter of th ...

Part two of term paper
... Taisho family today. The meteorite also had nickel and small amounts of other minerals found within it's body. This gave the three swords an almost wood grain effect to their blades. Since the iron in the swords was not pure they were quite difficult to make for the master swordsmith Kinimune Okayoshi. Forging it by folding it over and over did not work out very well. So the forging could only be carried out when the metal had gotten so hot it turned white. Although somewhat irrelevant to the s ...