Fig. 5From: Porcelain shards from Portuguese wrecks: Raman spectroscopic analysis of marine archaeological ceramicsRaman spectra collected from shard #3 from the Santa Maria Madre de Deus. 4 (A) Feldspar, β-wollastonite; (B) feldspar, β-wollastonite; (C) feldspar, β-wollastonite; (D) feldspar, β-wollastonite, anatase, (shard back); (E) quartz—shard edge. Spectra are to scale and have been baseline corrected and offset for clarityBack to article page