Electronic Supplementary Material 7

Article title: Stable isotope and mineralogical investigation of the genesis of amethyst geodes in the Los Catalanes gemological district, Uruguay, southernmost Paraná volcanic province

Journal name: Mineralium Deposita

Authors´ names: Duarte, L.C., Hartmann, L.A., Ronchi, L.H., Berner, Z., Theye, T., Massonne, H.-J.

Affiliation of the corresponding author (LAH): Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500; 91501-970 Porto Alegre, Rio Grande do Sul, Brazil [email protected]

Table 7 – Isotopic compositions and concentrations of δ34S in the host rock; conc. = concentration.

STD Conc.

Sample (‰ CDT) (ppm)

Colada Catalán

CT1 -12.1 0.18 917

PA33 -0.4 0.05 207

PA34 -7.6 0.29 180

PA35 -11.2 0.13 167

Colada Cordillera

PA21 -15.0 0.07 n.d.

PA23 -3.9 0.12 67

PA25 -5.6 0.03 215

PA28 -0.3 0.08 117