A geologist replies:
"...The rock sample is constitutionally similar to volcanic basalt flow of fine xline grain and high hardness, amygdaloidal, vesicular with pockets that were gas filled or occasionally filled with white minute amygdules of feldspar or calcite now mostly eroded. This kind of arrangement would be similar to many meteorites. Therefore my humble opinion is that the rock sample may well be part of an exploded meteorite. Explosion results in many fragments. Would be good to know if more such fragments have been found in Haliburton area ?.."