Mark mentioned finding glass globules attached to the crust of his fragment.  After hearing this we examined over two dozen specimens and found the same thing on about half of them.  I did not observe dumbbell or patty shapes on any of them.  All the best,
 
Adam Hupe
 
I suspect the distinctive dumbell and patty shapes do not occur until a molten or semi-molten droplet departs the host mass and becomes subject to free-stream aerodynamic forces.
 
Mark
Madison, WI

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