[meteorite-list] Holbrook Tektites ( Heat Testing of Tektites)

[cdtucson at cox.net]

Bernd, Mark, Dennis, Brian, et al, 
This is quite interesting because Dennis sent me pictures of his Holbrook Tektite find and it is identical to my finds both in color ( golden brown not grey) and texture. 
I like that "Arizonaites" or Arizona Whatevers". 
Again they look like Columbianites and the really interesting thing is that Holbrook is quite a distance from Wilcox AZ. where I found all of mine.
There are some really good pictures of Tektites in Marvin's Book. "Southwest Meteorite Collection" pages 182-197.
Carl

--
Carl or Debbie Esparza
Meteoritemax


---- bernd.pauli at paulinet.de wrote: 
> Hello Brian, Dennis, Mark, Carl and List,
> 
> Brian wrote:
> 
> "Obsidian explodes when heated quickly. So - it is easy to eliminate
>  an Obsidian as a Tektite, just by throwing alot of heat at it quickly."
> 
> In May or June 2000, our late Jim Kriegh put his new welding torch
> on an Apache Tear, and, ... ... it exploded!
> 
> Jim once had a chemist friend heat one of the numerous "Arizonaites"
> he and Twink had collected (and that's probably what Carl is talking
> about in his post to the List: "Years ago I found what I thought was
> a strewnfield of tektites in Southern AZ") in an oven along with an
> Apache tear.
> 
> The Apache Tear foamed as the water started coming out of it but the AZite
> (Jim once called them "Arizona whatevers" :-) showed no signs of water.
> The chemist friend then even raised the temperature another 500°F above
> what the Apache Tear started foaming and all the Arizonaite did was glow
> red. After cooling it looked the same as before.
> 
> Twink told me that during another heating experiment, "one of their AZites
> turned bright red, fell into three pieces and then returned looking normal".
> 
> 18 of these enigmatic "glasses" reside in my meteorite collection, and, yes,
> their coloration in transmitted light is that of so-called "Columbianites".
> 
> Best wishes from rainy, thundery,
> stormy Southern Germany,
> 
> Bernd
> 
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