| Saponite | Fe3+ | Sherman and Vergo (1988b) |
| Sapphire (see corundum) | ||
| Sapphirine | Cr3+, Fe2+, IVCT | Langer et al. (1994) |
| Sarkinite | Mn2+ | Hålenius and Westlund (1998) |
| Scapolite | Fe3+, CO3- | Taran et al. (1989) |
| Scorzalite | Fe IVCT | Eromenko (1971) |
| Sekaninite | Fe2+ | Goldman et al. (1977) |
| Serandite | Mn2+ | Manning (1970) |
| Manning (1968b) | ||
| Sillimanite | Fe3+, IVCT | Rossman et al. (1982) |
| Hålenius (1979) | ||
| Sinhalite | Fe2+ | Farrell and Newnham (1965) |
| Sodalite | color centers | Pizani et al. (1985) |
| Na | Annersten and Hassib (1979) | |
| Faye (1971b) | ||
| lazurite | color centers | Tretyakova et al. (1985) |
| S | Samoilovich et al. (1973) | |
| Platonov et al. (1971) | ||
| Spessartine | V3+, Mn2+ | Krzemnicki et al (2001) |
| V3+ | Schmetzer and Ottemann (1979) | |
| Mn2+ | Moore and White (1972) | |
| Slack and Chrenko (1971) | ||
| Manning (1970) | ||
| Manning (1967a) | ||
| Fe2+ | Slack and Chrenko (1971) | |
| Sphalerite | Cu2+ | Manning (1966) |
| Fe2+ | Manning (1967c) | |
| Mafunin et al. (1967) | ||
| Co2+ | Rager et al. (1996) | |
| Cervelle et al. (1989) | ||
| Henn and Hofmann (1985) | ||
| Platonov and Marfunin (1968) | ||
| Gumlich and Schultz (1966) | ||
| Spinel | Gumlich and Schultz (1966) | |
| Fe3+ | Andreozzi et al. (2001) | |
| Fe2+ | Rossman and Taran (2001) | |
| Fe | Taran et al. (1987, 1989, 1991) | |
| Fe (synthetic) | Lenaz et al. (2004, 2006) | |
| Fe, Cr, V, Co | Schmetzer et al. (1989) | |
| Schmetzer and Gübelin (1980) | ||
| Vukanov et al. (1977) | ||
| Fe2+, Fe3+ | Dickson and Smith (1976) | |
| Mao and Bell (1975) | ||
| Shankland et al. (1974) | ||
| Gaffney (1973) | ||
| Slack et al. (1966) | ||
| Cr3+ | Langer et al. (1997) | |
| Taran et al. (1989, 1994) | ||
| Czaja and Mazurak (1993) | ||
| Mao and Bell (1975, 1974b) | ||
| Sviridov et al. (1973) | ||
| Reed (1971) | ||
| Wood et al. (1968) | ||
| Cr3+ (synthetic) | Lenaz et al. (2004, 2006) | |
| Mn3+ (synthetic) | Bosi et al. (2007) | |
| Ni2+ | Sakurai et al. (1969) | |
| Co2+ | Shigley and Stockton (1984) | |
| chromite | Cr3+, Fe2+ | Mao and Bell (1974b) |
| Cr3+ (synthetic) | Lenaz et al. (2004, 2006) | |
| galaxite | Mn2+ (synthetic) | Hålenius et al. (2007) |
| spinel polymorph of olivine | Burns and Sung (1978) | |
| Yagi and Mao (1977) | ||
| Mao (1976) | ||
| Mao and Bell (1972) | ||
| Spodumene | Mn | Schmitz and Lehmann (1975) |
| Cohen and Janezic (1983) | ||
| Staurolite | Co2+ | Burns (1970a) |
| Fe2+ | Burns (1970a) | |
| Bancroft and Burns (1967) | ||
| Stewartite | Fe3+ | Rossman (1976a) |
| Stichtite | Cr3+ | Calas et al. (1984) |
| Stringhamite | Cu2+ | Vedanand et al. (1991) |
| Sugilite | Mn3+ | Fritsch and Shigley (1994) |
| Surinamite | Fe IVCT | Barbier et al. (2002) |
| Suzukiite | V4+ | Kato et al. (1974) |