1. Trace Elements in the Terrestrial Environment;Adriano,1986
2. Ultramafic (serpentinitic) mineralogy class;Alexander,1985
3. Environmental Chemistry of the Elements;Bowen,1979
4. The nature of kerolite, its relation to talc and stevensite;Brindley;Miner. Mag.,1977
5. Rock-Forming Minerals, 1A. Orthosilicates;Deer,1982