Mining

Here are the locations of ore , enjoy :) !

Copper Vein ----------------Alterac Mountains, Ashenvale, Darkshore, Desolace, Dun Morogh, Durotar, Duskwood, Elwynn Forest, Hillsbrad Foothills, Loch Modan, Mulgore, Redridge Mountains, Silverpine Forest, Stonetalon Mountains, The Barrens, Thousand Needles, Thunder Bluff, Tirisfal Glades, Westfall, Wetlands
Tin Vein ---------------------------The Barrens, Silverpine Forest, Darkshore, Ashenvale, Duskwood, Thousand Needles, Hillsbrad Foothills, Redridge Mountains, Loch Modan, Arathi Highlands, Wetlands, Stonetalon Mountains, Westfall, Alterac Mountains, Stranglethorn Vale, Desolace, Dustwallow Marsh, Feralas
Silver Vein------------------------- Alterac Mountains, Arathi Highlands, Ashenvale, Badlands, Darkshore, Desolace, Duskwood, Dustwallow Marsh, Feralas, Hillsbad Foot hills, Loch Modan, redridge Mountains, Searing Gorge, Silverpine Forest, Stonetalon Mountains, Stranglethorn Vale, Swamp of Sorrows, Tanaris, The Barrens, The Hinterlands, Thousand Needles, Westfall, Wetlands
Iron Deposit--------------------------- Alterac Mountains, Arathi Highlands, Ashenvale, Badlands, Desolace, Duskwood, Dustwallow Marsh, Feralas, Hillsbrad Foothills, Searing Gorge, Stonetalon Mountains, Stranglethorn Vale, Swamp of Sorrows, Tanaris, The Hinterlands, Thousand Needles, Wetlands
Gold Vein -------------------Alterac Mountains, Alterac Valley, Arathi Highlands, Ashenvale, Azshara, Badlands, Blasted Lands, Burning Steppes, Desolace, Duskwood, Dustwallow Marsh, Eastern Plaguelands, Felwood, Feralas, Hillsbrad Foothills, Searing Gorge, Silithus, Stonetalon Mountains, Stranglethorn Vale, Swamp of Sorrows, Tanaris, The Hinterlands, Thousand Needles, Un'Goro Crater, Western Plaguelands, Wetlands, Winterspring
Mithril Deposit--------------------- Alterac Mountains, Arathi Highlands, Azshara, Badlands, Blasted Lands, Burning Steppes, Desolace, Dustwallow Marsh, Eastern Plaguelands, Felwood, Feralas, Hillsbrad Foothills, Searing Gorge, Silithus, Stonetalon Mountains, Stranglethorn Vale, Swamp of Sorrows, Tanaris, The Hinterlands, Un'Goro Crater, Western Plaguelands, Winterspring
Truesilver Deposit ------------------Alterac Mountains, Arathi Highlands, Azshara, Badlands, Blasted Lands, Burning Steppes, Desolace, Dustwallow Marsh, Eastern Plaguelands, Felwood, Feralas, Hillsbrad Foothills, Searing Gorge, Silithus, Stonetalon Mountains, Stranglethorn Vale, Swamp of Sorrows, Tanaris, The Hinterlands, Thousand Needles, Un'Goro Crater, Western Plaguelands, Winterspring
Dark Iron Deposit ------------------Burning Steppes, Searing Gorge, Blackrock Depths, The Molten Core
Small Thorium------------------- Vein Blasted Lands, Burning Steppes, Eastern Plaguelands, Felwood, Feralas, Searing Gorge, Silithus, Tanaris, The Hinterlands, Un'Goro Crater, Western Plaguelands, Winterspring
Rich Thorium -----------------Vein Azshara, Burning Steppes, Eastern Plaguelands, Un'Goro Crater, Western Plaguelands, Winterspring

With Journeyman-level mining, you can harvest ore from the following mineral veins: http://www.wowhead.com/?objects=-4&filter=cr=7;crs=4;crv=150

Note that Incendicite (http://www.wowhead.com/?object=1610), Lesser Bloodstone (http://www.wowhead.com/?object=2653 ), and Indurium (http://www.wowhead.com/?object=19903) are quest-related veins.

With gathering professions now comes new passive and cast abilities. Mining now gives you the passive ability "Toughness". With each rank up in Mining, you obtain a new rank in this skill.

Here are the different ranks for this ability in order of ranks and Mining skill:
(mouse over the link to view the information for the rank)

75 - 149 (Apprentice):
Toughness (Rank 1)

150 - 224 (Journeyman):
Toughness (Rank 2)

225 - 299 (Expert):
Toughness (Rank 3)

300 - 374 (Artisan):
Toughness (Rank 4)

375 - 449 (Master):
Toughness (Rank 5)

450+ (Grand Master)
Toughness (Rank 6)

Happy Mining! :)
(Edit: Corrected skill level vs rank, thanks!)