Errata and comments on “Thermal and Raman-spectroscopic analysis of Maya blue carrying artefacts, especially fragment IV of the Codex Huamantla” [Thermochim. Acta 456 (2007) 56–63]

Some errata in the text of the paper “Thermal and Raman-spectroscopic analysis of Maya blue carrying artifacts, especially fragment IV of the Codex Huamantla” [Thermochim. Acta 456 (2007) 56–63] were noticed, and some historical inaccuracies were revealed. A discussion on the methodological approach using Raman spectroscopy to identify Maya blue in the codex is presented here, not questioning, however, the authenticity of the codex.