This guide will help you with achieving 1-99/120 mining ASAP.
Equipments - Pickaxes
Level 1 - Iron Pickaxe
Level 41 - Rune Pickaxe
Level 61 - Dragon Pickaxe (Obtained killing Dwarves Battlefield)
Level 70 - Crystal Pickaxe (Obtained by having Dragon Pickaxe and 4,000 harmonic dust in Prifddinas)
Access to prifddinas? Either by purchasing the perk to instant access, or having 1900+ total levels.
Ores
Level 1-15 Tin & Copper Ore
Level 15-20 Iron Ore
Level 20-30 Silver Ore
Level 30-40 Coal Ore
Level 40-55 Gold Ore
Level 55-70 Mithril Ore
Level 70-77 Adamantite Ore
Level 77-81 Living Rock Caverns (LRC)
Level 81-89 Gold & Coal Ore from (LRC)
Level 89-99/120 - Seren Ore/ Corrupted Ore (Prifddinas Only)
Mining / Golden Mining Outfit = 5 pieces. You get a piece every 500-550 ores mined.