In the game Legend of Zelda spirit tracks where can i find an item called a dark ore?

I think maybee after you beat the game or get your freight car and talk to linebeck III he will ask you to bring him an item called a dark ore. i suppose its a treasure item but its description is its found in the dark and melts if it touches sunlight. anyone know it?

here you goo:

http://www.gamefaqs.com/portable/ds/file/959019/58699

it shows all the places were you can get the Dark Ore

The Legend of Zelda: Spirit Tracks – what’s inside the treasure chest?

The Legend of Zelda: Spirit Tracks – Pre-Played $24.99 Nintendo’s classic franchise writes a new chapter with two new ways to travel through the adventure! Join Link for a magical ride on the rails in The Legend of Zelda: Spirit Tracks. This time you’ll explore the land by train, opening a world of new possibilities. Solve puzzles in real-time as you choose the right track, manage your speed, and clear obstacles out of your way. You’ll also explore dungeons in a new way: accompanied by the Phantom, a giant suit of armor that will follow your every command. You’ll use new items and weapons, including a Whirlwind you can trigger by blowing into the DS microphone, and more.

Legend of Zelda: Lynx Awakening $24.4 What would happen if the Legend of Zelda game was centered around cats…. In a world where Link is now Lynx

Treasure (Bonus Tracks) $15.99 Universal Import:475852

Love is where you find it $15.95 By Nacio Herb Brown. Popular music. Language: English. Published by Noten Roehr

Home Is Where You Find It $14.99 Rpm Records Uk:277