Table 3 Results of XRD phase analysis of soil samples
From: A methodological approach to estimate soil corrosivity for archaeological copper alloy artefacts
| Â | Quartz | Calcite | Dolomite | Illite | Albite-Calcian | Clinochlore | Gypsum | Bassanite | Anhydrite | Microcline | Albite | Nontronite | Hematite | Sylvite |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SiO2 | CaCO3 | CaMg(CO3)2 | K(Al,Fe)2AlSi3O10(OH)2·H2O | (Na,Ca)Al(Si,Al)3O8 | Mg–Fe–Fe–Al–Si–O–OH | CaSO4·2H2O | CaSO4·0.5H2O | CaSO4 | KAlSi3O8 | NaAlSi3O8 | Na0.33Fe2+3(Si,Al)4O10(OH)2·xH2O | Fe2O3 | KCl | |
HT.01 | ■| ■| ■| ■| – | – | ■| – | – | ■| ■| – | ■| – |
HT.02 | ■| ■| ■| ■| ■| – | – | ■| – | – | – | ■| – | – |
HT.03 | ■| ■| ■| ■| ■| – | ■| – | ■| – | – | – | ■| – |
HT.04 | ■| ■| ■| ■| ■| – | – | – | – | – | – | – | – | – |
HT.05 | ■| ■| ■| ■| ■| – | ■| – | – | – | – | – | – | – |
HT.06 | ■| ■| ■| ■| – | – | – | ■| – | – | ■| – | ■| ■|
ST.01 | ■| ■| ■| ■| ■| – | – | – | ■| – | – | – | – | – |
ST.02 | ■| ■| ■| ■| ■| ■| – | – | – | – | – | – | – | – |
ST.03 | ■| ■| ■| ■| ■| ■| ■| – | – | ■| – | – | – | – |
ST.04 | ■| ■| ■| ■| ■| ■| – | – | ■| – | – | – | – | – |
ST.05 | ■| ■| ■| ■| ■| ■| ■| – | – | ■| – | – | – | – |
ST.06 | ■| ■| ■| ■| – | ■| – | – | – | – | – | – | ■| – |