Meteorite comparison. In black, our X-Shooter smoothed spectrum. In red (dot-dot-dashed), the spectrum of the Tagish Lake meteorite, as pressed powder (RELAB sample MT-TXH-025-L0). In green (dashed), the spectrum of a relatively fresh portion of the Tagish Lake meteorite (RELAB sample MT-MEZ-011). For both meteorite samples, grain size is <125 μm.