Where is my world ore resource? My world mining strategy

Where is the mine generally distributed in My World? How to find ore resources in "My World"? Many players don't know much about this, but don't be impatient. The following system is a series of tips and tricks for you to share with you. I hope to help you.
Before mining, we must find the mine and understand the location of the mine. Coal in 1-128 layers of iron ore in 1-64 layers of lapis lazuli in 1-23 layers of gold in 1-29 layers of diamonds in 1-12 layers of redstone in layers 1-15, followed by prospecting holes, mines In fact, it is not very easy to find, especially the mineral mines. The simplest types of mines are available in four distributions. 1. Mountain mine hole 2. Plain mine hole 3. Underwater mine hole 4. Underground mine hole (relic mine hole) Relics are the best, easy to dig a lot of gold, iron, redstone. Brushing the cage is also very easy to find, often appear is the poison spider