[meteorite-list] Cristobalite

[yasmani.ceballo at nauta.cu]

Hello friends
I have a surviving difractogram of a rock that was thinked to be  
meteorite in the past, but now is lost.
The only information we have is the presence of these minerals:  
cristobalite, quartz, olivine, enstatite, plagioclase and amorphous  
materials. Probably super high peaks of cristobalite, followed by  
quartz.
This is the only information we have, so I know is nothing, but with  
that how we can say?
I mean, a high cristobalite peak mean anything? There is no  
cristobalite in the geology of the area where the rock is believed to  
have fallen.
Thanks