tag:blogger.com,1999:blog-21544346.post8278594641591569040..comments2022-10-07T05:33:41.220-04:00Comments on PrettyRock.com's Gemology and Faceting blog: Big Purple Rockemcroriehttp://www.blogger.com/profile/11588678408628976938noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-21544346.post-3406599843121317942009-12-09T00:09:32.597-05:002009-12-09T00:09:32.597-05:00Since you don't have a thin section (Or presum...Since you don't have a thin section (Or presumably an optical microscope) you have two good options to choose from.<br /><br />Taste testing is the easiest method. Sylvite will taste bitter, whereas Halite will taste, well... salty.<br /><br />Another good test is that a knifeblade, when scratched across the surface of halite, will procduce a powder. Sylvite will not produce a powder.Anonymousnoreply@blogger.com