The Larimar Ore, which can be found in Crystal Cavern, the sixth and final layer of Mining Simulator 2, starts at a depth of 2,045 meters but is more common at a depth of 2,245 meters. So, how do you mine it quickly?
First, you will want to enchant your pickaxe so that it will not alter the amount of ore you mine. Second, you will need to enter first-person mode and mine out a block before proceeding into it. After that, you can rotate your camera and get an aerial view of all of the various blocks you can mine around you. You will need to search for a bright blue ore.
If you follow the instructions above, you may mine to those blocks or teleport to them. The Larimar Ore is a small quantity of time that you may collect there.