[meteorite-list] 1848: light produced when "meteorite" sawn - possible or...

[Impactika at aol.com]

Norm, Chris and List,
 
Looking on the Calendar of Falls, I found this one:
Braunau: Fell July 14, 1847 at 3:45am, near Trutnov, Bohemia, Czech  
Republic. 2 masses, 22kg and 17kg, and it is an hexahedrite. 
Could cutting an iron create light?
 
Anne M. Black
_www.IMPACTIKA.com_ (http://www.IMPACTIKA.com) 
_IMPACTIKA at aol.com_ (mailto:IMPACTIKA at aol.com) 
President, I.M.C.A.  Inc.
_www.IMCA.cc_ (http://www.IMCA.cc) 



In a message dated 9/12/2005 6:41:14 P.M. Mountain Standard Time,  
nlehrman at nvbell.net writes:
Chris & list,

"Possible or  impossible?"

Possible.  Quite a few minerals can emit light  on
being crushed or scratched.  This is  termed
"triboluminescence".  Additionally, some minerals can
emit  light when heated to temperatures still well
below red heat.  This is  "thermoluminescence".  I
don't know the composition of this particular  stone,
but if it has some non-metallic minerals, the action
of the saw  might cause light emission.



--- chris aubeck  <caubeck at gmail.com> wrote:

> Ohio | Sandusky | The Sandusky  Clarion | 1848-01-25 
> 
> 
> A REMARKABLE AEROLITE. 
>  
> On the 14th July last, a remarkable aerolite 
> fell at Brannan,  at Bohemia. Two fragments were
> found, 
> one weighing fifteen, the  other twenty-one
> kilogrammes. 
> The aeorilite [sic] appeared to  proceed, as is very
> often the case,
> from a small black cloud.  The smaller fragment
> fell upon a house, pierced the roof, struck
>  a beam which caused it lo deviate slightly
> from its course, passed  through a ceiling composed
> of white clay and straw, and entered a  room
> where several persons were assembled, but
> fortunately,  noone was hurt. A circumstance
> worthy of remark was, that the straw  of
> the ceiling traversed by the meteor was not in
> the least  carbonized: it only appeared of a
> brighter yellow, with semi-metalic  lustre; pieces
> of straw even adhering to the stone, presented
> no  trace of carbonization. A fragment has
> been analysed by M. Fischer, of  Breslau, who
> found in it, besides sulphuretted iron, carbon,
>  phosphorus and bromine. In sawing the mass, 
> globules were inflamed by  the friction of the
> teeth of the saw, and a bright light  produced.
> 
> Literary Gazette.
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