Crafting using Refined Obsidian Ingot, Refined Obsidian Ingot, Refined Obsidian Ingot, Refined Obsidian Ingot and Refined Obsidian Ingot, arranged in the pattern shown. Produces Refined Obsidian Helmet.
Crafting 
Refined Obsidian Helmet guaranteedSmelting using Any of Refined Obsidian Helmet / Refined Obsidian Chestplate / Refined Obsidian Leggings / Refined Obsidian Boots / Refined Obsidian Sword / Refined Obsidian Pickaxe / Refined Obsidian Axe / Refined Obsidian Shovel / Refined Obsidian Hoe / Refined Obsidian Paxel (200 ticks, 0.1 xp). Produces Refined Obsidian Nugget.
Smelting 
Refined Obsidian Nugget guaranteedBlasting using Any of Refined Obsidian Helmet / Refined Obsidian Chestplate / Refined Obsidian Leggings / Refined Obsidian Boots / Refined Obsidian Sword / Refined Obsidian Pickaxe / Refined Obsidian Axe / Refined Obsidian Shovel / Refined Obsidian Hoe / Refined Obsidian Paxel (100 ticks, 0.1 xp). Produces Refined Obsidian Nugget.
Blasting Refined Obsidian Nugget guaranteed
mekanismtools:refined_obsidian_helmetmekanismtoolsmekanismtoolsforge:items/armors/helmets/refined_obsidian minecraft:items/trimmable_armor
Recipe JSON (1):
{
"recipe_type": "minecraft:crafting_shaped",
"pattern": [
"III",
"I I"
],
"ingredients": {
"I": {
"tag": "forge:ingots/refined_obsidian"
}
},
"conditions": [],
"sequence": null,
"group_name": null,
"experience": null,
"cooking_time": null
}