Thallasium Leggings is a item from Unknown Mod, crafted from Thallasium Forged Plate.
Crafting using Thallasium Forged Plate, Thallasium Forged Plate, Thallasium Forged Plate, Thallasium Forged Plate, Thallasium Forged Plate, Thallasium Forged Plate and Thallasium Forged Plate, arranged in the pattern shown. Produces Thallasium Leggings.
Crafting 
Thallasium Leggings guaranteed
betterend:thallasium_leggingsbetterendunknownRecipe JSON (1):
{
"recipe_type": "minecraft:crafting_shaped",
"pattern": [
"###",
"# #",
"# #"
],
"ingredients": {
"#": {
"item": "betterend:thallasium_forged_plate"
}
},
"conditions": [],
"sequence": null,
"group_name": "end_metal_leggings",
"experience": null,
"cooking_time": null
}