tag:blogger.com,1999:blog-1557354565731621184.post5424992858291768681..comments2017-02-23T20:06:12.239-07:00Comments on What Things Are Made Of: You've got gypsum!Richard Gibsonhttp://www.blogger.com/profile/03330538991049552829noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-1557354565731621184.post-60751651414224533222010-01-18T13:52:29.893-07:002010-01-18T13:52:29.893-07:00It appears that the US-made sample that I saw repo...It appears that the US-made sample that I saw reports on is now believed to have been contaminated by Chinese-made material. I will remove the statement unless I can find better support. <br /><br />Thanks.Richard Gibsonhttps://www.blogger.com/profile/03330538991049552829noreply@blogger.comtag:blogger.com,1999:blog-1557354565731621184.post-22490382302622566012010-01-18T13:31:45.530-07:002010-01-18T13:31:45.530-07:00RE: "but several scientific studies found th...RE: "but several scientific studies found that U.S.-made drywall produced more H2S than the Chinese product."<br /><br />Please cite these references, which should be a challenge, since they don't exist.Michael D. Shawhttps://www.blogger.com/profile/05751175794720982564noreply@blogger.com