Ariadne/config/excavated_variants/tinkers_construct.json

{
	"mod_id": "tconstruct",
	"provided_stones": [],
	"provided_ores": [
		{
			"block_id": [
				"tconstruct:cobalt_ore"
			],
			"en_name": "Cobalt Ore",
			"types": [
				"nether"
			],
			"id": "cobalt_ore",
			"stone": [
				"netherrack"
			]
		}
	]
}