How To Be A Miner on Minecraft

Tunneling, swing your pickaxe by holding left click with your mouse upon a wall facing you to remove the smooth stone, there's a reasonable probability that you could stumble across/uncover a cluster of ores in doing so. 

It's singularly, a revolutionary method of mining and should be copied. 

Caving in the day, exploration of passageways is profitable under the circumstances that the sun remains to be shining. Clambering through a gap to enter an uncharted lair clutching your pickaxe is dangerous, try and peer at the caves entrance and make a careful judgement prior to stepping/dropping in. 

Turning your brightness to one hundred percent will ensure that your eyes don't deceive you, as the caves might seem gloomier than they actually are from afar!

Don't get stranded or lost in the pitch black, a trail can guide you homewards when stuck in a precarious situation. Carry torches in your inventory and navigate your route with a map. A compass continuously points to the spawn point, therefore if you know where you live in relation to spawn then you have a distinct chance of returning. Be equipped with a clock, this can be a guide to how hostile the atmosphere is, when your immersed in mining and oblivious to the movement of the sun. 

Take precautions, don't mine directly beneath your feet, otherwise the outcome could be fatal, the compressed rock has cavities containing burning lava, awaiting your descent. 

Never-mind the scorching lava though, the fall damage that can be brought about due to falling from above 24 blocks high, transpires to an immediate death upon landing. Inevitably, loosing hearts (life indicator) results in the loss of all the ores you have manged to mine along the mining expedition, which can be infuriating. 

Have coal reservations, what is a miner with no coal? Not a skilled one at best.

Avoid jumping besides ravines and finding spawners, looting the odd dungeon can be rewarding, but the main aim is to return to your settlement with a bare minimum of cobblestone and perhaps some idea of the scale of system of the mines that you've ventured throughout your trip. Scaling the edges of a ravine isn't normally a calculated process because the low gains in taking this narrow course-way are outweighed by the fatality. 

Greed is foolish, plunder what you need. Supplies are never scarce in mine-shaft as it's connected so widely. Disembarking from the mines with an inventory brimming with plundered blocks is a sign of having a worth-while mining expedition, but be vigilant that it isn't securely possessed by you, until you've left the discomforting surroundings. Hence, expending the shortest time in the mines is pivotal for an accomplished miner.