CompuServe Messages

Hi, Doug > The zektzerite may fluoresce as bright as that opal, but I will wager it is > not the same green color. The books describe it as "white"; I suspect > Lanny's mention of "bluish" is also zektzerite, a variation on white. You're right. I would call it bluish white – about the same color as Tide laundry detergent (unscented). > Feldspar (typically microcline) fluorescing dim maroon is commonplace. I > just read in Manny Robbins' new book on Fluorescence that this fluorescence > becomes bright when it is chilled enough. (Back now from putting lump of granite in freezer. <g>) How much is 'chilled enough'? Are we talking cryogenics here? I saw Robbins' new book in the Mt. Press catalog that arrived today. They also carry Rudy Tscherichs' Zeolites of the World, but I think I can buy that one cheaper from him in person at the FM Symposium next month, get get it autographed to boot. I'm still recovering from OzCIS self destructing last Sat. night. Lost all of this sections messages in the process. I tried resetting the counter last pass, but only got todays messages. I recall a message from Lanny stating that the feldspar should be bright red. Maybe with more than 4 watts that's true. I'm in the market for a more powerful SW lamp now. Wish I had jumped on Josephs' when I had the chance. Guy