Extended Data Fig. 3: UV-Raman spectrum of flint.
From: Estimating temperatures of heated Lower Palaeolithic flint artefacts
Unprocessed UV Raman spectrum taken from a flint surface collected from Mor formation (Sde Boker, Negev Desert, Israel) using 325 nm wavelength. The spectrum obtained using UV laser (325 nm) shows no intrinsic autofluorescence.
