it depends. The three metals are azurine, aquanine, and crimsonine. If you get the southeast metals first, then the last metal is azurine.
You can get the Azurine in the Ice Temple. If you need help getting to the ice temple, or compleating it, then i suggest going to either Zeldapedia or Zelda Dungon. They have good walkthroughs you can use. hope this Helps!!
I Searched on line and found that the azurine is a type of blue roach found in Europe
the pure metals are called crimsonine,azurine and i haven't gotten to the third yet.
You must enter the Temple of Ice on the Isle of Frost and defeat the boss, a two-headed dragon.
To get the Phantom Sword, take all three pure metals, Crimsonine, Azurine, and Aquanine, to Zauz, the legendary blacksmith, who will create the Phantom Sword for you.
To get the phantom sword, you need to have the three crystals, Crimsonine, Azurine, and Aquanine. You take these three crystals to Zauz the Blacksmith (he is located on an uncharted island north of the isle of gust). This is a walkthrough that will tell you how to get the three crystals and what to do from there: http://faqs.ign.com/articles/829/829838p1.html
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern AZ---N-. That is, seven letter words with 1st letter A and 2nd letter Z and 6th letter N. In alphabetical order, they are: azurine
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 6 words with the pattern -Z---N-. That is, seven letter words with 2nd letter Z and 6th letter N. In alphabetical order, they are: azurine czarina dzerens tzarina tzigane tzigany
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 3 words with the pattern -Z--IN-. That is, seven letter words with 2nd letter Z and 5th letter I and 6th letter N. In alphabetical order, they are: azurine czarina tzarina
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern -Z---NE. That is, seven letter words with 2nd letter Z and 6th letter N and 7th letter E. In alphabetical order, they are: azurine tzigane
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 5 words with the pattern AZ----E. That is, seven letter words with 1st letter A and 2nd letter Z and 7th letter E. In alphabetical order, they are: azotise azotize azurine azurite azymite