1. Addison J, Davies LST (1990) Analysis of amphibole asbestos in chrysotile and other minerals. Ann Occup Hyg 34:159–175
2. Atkinson GR, Rose D, Thomas K, et al. (1981) Collection, analysis and characterization of vermiculite samples for fiber content and asbestos contamination. Midwest Research Institute report for the US Environmental Protection Agency Project 4901-A32 under EPA Contract 68-01-5915, Washington, DC
3. Beard ME, Ennis JT, Crankshaw OS, et al. (2007) Preparation of nonasbestiform amphibole minerals for method evaluation and Health Studies Summary Report and appendices. Prepared for Martin, Harper, NIOSH, Morgantown, WV by RTI International. (Hearl F, Personal communication, CDC/NIOSH/OD)
4. Bish DL, Chipera SJ (1991) Detection of trace amounts of erionite using X-ray powder diffraction: erionite in tuffs of Yucca Mountain, Nevada, and central Turkey. Clay Clay Miner 39:437–445
5. Reviews in mineralogy and geochemistry,2001