For Ark Mobile. Best way to farm crystal along with obsidian even metal I found is this. Get your self an Argy and an Anky. Next craft yourself 2 refining forges, 2 fabricators, and 2 mortar and pestles (depends how many spots you want to farm) . For the best areas it will be the volcano and the blue obelisk drop a fabricator and a refining for in a spot where no resources spawn (they won't spawn anymore if you do. best spots are up on the rims of the mountains.) From your base you will need to bring some gas (fuel for the fabricator) cementing paste (easiest way to get that is the beaver dams or tame a couple achatinas, don't waste your chitin crafting it unless you don't use it) and electronics as much as you can get your hands on for both. Now with everything in place gather everything with anky and dump the rock and flint into the mortar (for spark powder) metal into the forge (for metal ingots) and the rest into the fabricator craft tons of fridges for transport each fridge turns 150 kilos into 4 kilos. Now that you have it all set up you can go back and forth with only having to worry about hauling fridges to set up and tear down at your main base giving you all the raw materials back. You can do this with other flyers since you can haul 1500 kilos of mats in 40 kilos of fridges so for fast runs take a pteranodon. This is just what I've learned. Hope it helps you guys out. Hope it helps! Play smart and survive!

Well if you want crystals and all the places like mountains and location in the island map are covered by bases. Then you can try in the caves although they give few crystals and if you want more crystals you can try underwater caves you can get large amount of crystals in them. This is heplful when server is being dominated by the current Alphas.

Have one of your tribe mates Mount your highest weighted Anky and pick them up with the talents of your highest weighted Argy then as you are flying low over the metal nodes at the volcano, have your tribe member do the normal swing attack with the Anky as if it were on the ground and you will be able to clear the entire volcano.

In valguero, there is an easy place to get these. In the chalk hills spawn 2 (i think) the place where there is an island surrounded by rocks and a moat of water. If you go up, you will see land above that place, and a lake on the top connected to there. Right underneath the land brige of the lake, you can find lots of crystal and obsidian, all outside on a little hill. No dangers, maybe a few raptors or so (rarely)

There's this cave weres there 10k+ crystal and its near herb Island so try to find it its op early game crystal and obsidian.

(Note obsidian will have 3k probably so its a crystal cave w ith a artifact (I think)) This should help have a nice day) ••

~