minecraft-assets/assets/minecraft/models/block/template_chiseled_bookshelf_slot_bottom_left.json

{
	"textures": {
		"texture": "#texture"
	},
	"elements": [
		{
			"from": [10, 0, 0],
			"to": [16, 8, 0],
			"faces": {
				"north": {"uv": [0, 8, 6, 16], "texture": "#texture", "cullface": "north"}
			}
		}
	]
}