[meteorite-list] TEKTITES VS. TEARS
From: Robert Verish <bolidechaser_at_meteoritecentral.com>
Date: Thu Apr 22 10:08:32 2004 Message-ID: <20020926080231.38570.qmail_at_web80305.mail.yahoo.com> ---------------- Original Message ----------------- [meteorite-list] TEKTITES VS. TEARS Sterling K. Webb kelly_at_bhil.com Thu, 26 Sep 2002 00:52:44 -0500 mafer wrote: > Hi Sterling and list > I still think the microwave test is valid and proves > the same thing. Heat both in a microwave, and see > the obsidian get too hot to handle (from water > content). > Mark > ---------- Hi! Great idea! Tomorrow I'm going to microwave an australite, an indochinite, a moldavite, a bediasite, an apache tear, and a big chunk of wyoming obsidian and see what happens. Sterling ------------------------------------------------------ Hi Sterling and Mark, Make sure that you use an asbestos pad under your specimens, because the obsidian will heat to boiling in less than a minute, and take care in handling the tektites, because some of them will still get very hot to the touch. I've attached some correspondence that recounts some of our earlier efforts at comparison testing. Take Care Bob V. ----------- Attached Message ------------ --- Twink Monrad <monrad_at_azstarnet.com> wrote: > Yesterday Jim did the torch test on the specimens > you sent, Bob. He also torched some more AZites, > with our usual results - glowed red, then returned > to original state. > > Also torched a very smooth-surfaced, alleged Apache > tear purchased here, and > it glowed red and returned to normal state. > > > All following were sent to JK by RV: > > Indochinite: glowed red, returned to original > state. > > Mouth of Adams Canyon, Antelope Valley: glowed red, > cooled with white foam appearance on outside. > > Davis Creek obsidian: Used a cut-off end piece: > crumbled apart as it > turned a light red color. > > Rachael, Nevada obsidian: Glowed bright orange, > returned to normal state > except for a tiny area with white foam. > > No. CA. cloudy banded obsidian: glowed bright > orange, did not break, > returned to original state. > > No. CA (probably) : Used a cut-off end piece: > turned bright orange and > broke into many pieces. > > > Bob, do you wish to have any of these returned to > you for further study? > > Thanks for your interest, Twink Monrad > Date: Mon, 21 Aug 2000 18:58:44 -0700 (PDT) From: "Robert Verish" <bolidechaser_at_yahoo.com> To: "Monrad" <monrad_at_azstarnet.com> CC: golddoc_at_hotmail.com Subject: Re: JK torch test 8/19/00 Hi Twink, Thanks for the detailed list of results, and thank Jim for me for running the tests. I think the results are very interesting. Please let me know what kind of conclusions you and Jim are drawing from all of your tests. I think the results could be important, considering the high bid prices on similar specimens like the item in the following recent eBay auction: http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=403945268 A lot of money for a 3.8 gram stone that could very easily be "just an Apache Tear"! :-) bob v. Date: Mon, 21 Aug 2000 19:05:13 -0700 To: "Robert Verish" <bolidechaser_at_yahoo.com> From: "Monrad" <monrad_at_azstarnet.com> Subject: Re: JK torch test 8/19/00 Since one of your specimens, the large obsidian chip, also did not change, it looks like the results are inconclusive, unless there is something special about marenkenite (low percentage of hydration), also... Just had a note from Darryl Futrell who said that red hot is not hot enough, that we need white hot, so when Jim has the inclination may try it again. Will keep you posted, Twink ------------ End of Attached Message ------------ __________________________________________________ Do you Yahoo!? New DSL Internet Access from SBC & Yahoo! http://sbc.yahoo.com Received on Thu 26 Sep 2002 04:02:31 AM PDT |
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