You will need to have two accounts. One Temple Warrior lvl 40+ that can mine lvl 3 or 4 mine and one account that can mine lvl 2 mine and lvl 3 or 4 at blacksmithing.

Have always more than one Solid/Mining Pickaxe

1.  Set one account at Blaze Cliff mining place and mine “Magic Crystal-mine (Lv2)”  you will need many of these.

2.  Set the Temple Warrior at Alaman Tribe mining place and mine “Glow Crystal-mine (Lv3)” or “Seablue Crystal-mine (Lv4)”  you will not need so many of these.

5.  When you have enough materials trade all the materials to the account that is lvl 3 or 4 at blacksmithing.

6.  Now go to PP (Production Principal) and Compose them to "Fortitude Gauntlets" or "Triumph Gauntlets (Refined)"

7.  Decompose them to Magic Perfect Powder and sell them (I sell them for 25k ea in BitComet III 10 stack = 250k gold)