The success chance when mining is based on your skill in Mining and Mining Mastery as well as you Wisdom.
Mining and Mining Mastery will reduce the time it takes to mine. Increased skill and mastery gives reduces the time it takes to mine, at 1 skill your mining time is 10 seconds, and at 100 mastery it's 8 seconds. Increasing your mining speed by 25%.
Mining any node will increase the Attributes Strength, Vitality and Wisdom.