Divinity Fragment
Can be exchanged for Divinity Slates
After unlocking the Statue of The New God feature, it can be used at the Heart of Rapacity to Exchange for Divinity Slates.
Available in Shop after level 85: Divinity Slates that can be branded 9 times
Available in Shop after level 95: Divinity Slates that can be branded 12 times

Sources: Recycling Divinity Slates