A very cool post by Tim Zowada.
http://badgerandblade.com/vb/showthread.php?p=2633791#post2633791
I didn't know you could extract steel from certain types of sand. Being an EE, I am primarily concerned with Silicon Dioxide in sand - basically taking a worthless substance and creating microprocessors that sell for hundreds or even thousands of dollars. I guess the Japanese do this with their Tamahagane steel. From the looks of it, the Iron comes from Magnetite in darker color sands. Here are some links that might be interesting.
http://en.wikipedia.org/wiki/Tamahagane#Tamahagane
http://en.wikipedia.org/wiki/Black_sand
http://en.wikipedia.org/wiki/Sand
http://en.wikipedia.org/wiki/Ironsand
Again, very cool!
http://badgerandblade.com/vb/showthread.php?p=2633791#post2633791
I didn't know you could extract steel from certain types of sand. Being an EE, I am primarily concerned with Silicon Dioxide in sand - basically taking a worthless substance and creating microprocessors that sell for hundreds or even thousands of dollars. I guess the Japanese do this with their Tamahagane steel. From the looks of it, the Iron comes from Magnetite in darker color sands. Here are some links that might be interesting.
http://en.wikipedia.org/wiki/Tamahagane#Tamahagane
http://en.wikipedia.org/wiki/Black_sand
http://en.wikipedia.org/wiki/Sand
http://en.wikipedia.org/wiki/Ironsand
Again, very cool!