tag:blogger.com,1999:blog-5163970.post2395725899617447502..comments2023-10-23T17:41:01.138-05:00Comments on Cowtown Pattie's Texas Trifles: Canyon Trip PhotosCowtown Pattiehttp://www.blogger.com/profile/07384649567351202679noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-5163970.post-78978802084633234362008-10-30T20:38:00.000-05:002008-10-30T20:38:00.000-05:00Actually, you can tell the difference in how it br...Actually, you can tell the difference in how it breaks if I remember correctly. Quartz breaks in uniform pieces and gypsum tends to be powdery.Kay Dennisonhttps://www.blogger.com/profile/02646717192332313215noreply@blogger.comtag:blogger.com,1999:blog-5163970.post-3043515517143916492008-10-28T11:22:00.000-05:002008-10-28T11:22:00.000-05:00Quartz is silicate (Silicon dioxide).gypsum is Cal...Quartz is silicate (Silicon dioxide).<BR/><BR/>gypsum is Calcium sulphate dihydride.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5163970.post-87309577250241716172008-10-28T04:35:00.000-05:002008-10-28T04:35:00.000-05:00Great photos. Fascinating to see the rock strata....Great photos. Fascinating to see the rock strata.joaredhttps://www.blogger.com/profile/09999395062839739698noreply@blogger.com