I feel like the detail of "conchoidal edges" is important for the abstract, as it gives a good idea of how the edges look and why/how they are being unintention

I feel like the detail of "conchoidal edges" is important for the abstract, as it gives a good idea of how the edges look and why/how they are being unintentionally made. A search/replace of "lithic assemblage" to "stone tools" would accomplish much the same as your summary without losing any of the details.