Allan wrote: > How can you tell one kind of tektite from another? > Say an australite from a bediasite from a small > indochinite?
Steven responded: > They are differentiated based on composition. > They can (and do) look the same. (From L. Elkins, > our resident tektite expert). Hello Allan, Steven and List, As for bediasites, Harold Povenmire wrote: "Many bediasites show a characteristic 'finger print' or 'worm track' on their surface." Several years ago, I purchased three bediasites from Mike Farmer but looking at them, I am not quite sure what these 'worm tracks' are. Two of them have deep furrows and all three of them show "striations" when the viewing angle is appropriate. Reference: H.R. Povenmire (1980) Fireballs, Meteors & Meteorites, pp. 139-140. > They are differentiated based on composition. The average silica content of bediasites is 71.89-81.31% The average silica content of Australian tektites = 66.9-68.5% But there are also some Australites with a silica content of 70-73%. Best regs, Bernd ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
