tag:blogger.com,1999:blog-20092824.post7758169337647124550..comments2024-01-30T19:45:36.648+11:00Comments on Lounge of the Lab Lemming: More on the asbestos dust-upC W Mageehttp://www.blogger.com/profile/09706100504739548720noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-20092824.post-9233985144520675042010-07-05T09:29:58.496+10:002010-07-05T09:29:58.496+10:00SF, as far as I can tell, the Libby amphibole was ...SF, as far as I can tell, the Libby amphibole was described as sodic tremolite because either the term winchite was not in widespread use, or it had not been formally defined. You'd have to go through the nomelclature reports to get the details, but the timeline I get is this:<br />1960's-1970's: Asbestiform amphibile is described as sodic tremolite, health concerns become apparent.<C W Mageehttps://www.blogger.com/profile/09706100504739548720noreply@blogger.comtag:blogger.com,1999:blog-20092824.post-36180622921965858392010-07-05T00:53:33.304+10:002010-07-05T00:53:33.304+10:00They (EPA, anybody writing rules, regs, and legisl...They (EPA, anybody writing rules, regs, and legislation...) really need to talk to mineralogists, as you pointed out. Keeping track of amphiboles (and other minerals) requires an expert.<br /><br />Mindat has only 10 photos of winchite, unfortunately none are the asbestiform or acicular version. It does list <a href="http://www.mindat.org/loc-29899.html" rel="nofollow">winchite and tremolite at Silver Foxhttps://www.blogger.com/profile/03131032620978696727noreply@blogger.com