| abstract
| - Obsidian Mining Cells can be found in Iron Treasure Chests on the Lava layer underground sometimes, or can be crafted in your Crafting Menu (default key "Q") or at Crafting Tables (that still exist in worlds created before R22 on September 16th 2015). However before being able to craft these Power Cells, it's necessary to unlock the crafting-recipe by crafting or taking a Stone Mining Cell. To craft one Obsidian Mining Cell, you'll need (as of R25 in November 2015):
* 4 Obsidian (bars) made in a Forge from Obsidian Ore
* 2 Stone Slabs made of Stone, Limestone or Bedrock in a Processor
* 10 (blocks of) Bedrock mined from the Fossil layer, which requires at least a Stone Mining Cell
* 8 (blocks of) Magnetite mined from the Fossil layer, which requires at least a Stone Mining Cell, or can be looted/pet-harvested from Rocksters, Night Rocksters or Warmworms
* 4 Mushrooms; either Red Mushroom, Brown Mushroom or Glowing Mushroom You will need the Obsidian Mining Cell to pull Siltstone, Stalactite, Saltrock and Glowing Mushrooms on the Stalactite layer. By taking/crafting your first Obsidian Mining Cell, you will automatically unlock the recipe for Iron Mining Cells, the very useful Advanced Extractors (can extract twice as much Ore from any Node as the Basic Extractor!) and Plows (since R22). However you cannot pull any harder rocks with Obsidian Mining Cells - like Hardened Lava, Igneous Rock, Sulfur nor any building-blocks crafted from such hard rocks. For that you will need stronger Power Cells like the Iron Mining Cell. As for fluids; you can pull (normal) Water with Obsidian Mining Cells, but not Tar, Bog Water, liquid Lava, Mineral Water nor Corrupted Water - those will need stronger Power Cells. It lasts longer than Stone mining cell, as for R29, it is believed that it can mine 350 T3 blocks (Stalactite level solid blocks) or 700 of T2 (fossil layer blocks) and T1 (stone blocks), and like the stone cell, it can extract infinite amounts of T0 blocks (blocks that doesn't need a cell to obtain like dirt or non-corrupted wood)
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