hello from windhoek. We have just packed our rocks (wrapped in plastic bags) in steel 20-L paint buckets and filled the gaps with expanding insulation foam. any bets on whether this will work? not sure if it will kick off properly inside the bucket. not sure if it will withstand the motion of the rocks in the truck south. if it works as well as it appears to - we have revolutionized the preservation of structural rock samples which so often I have lost to mechanical weathering along the way home...
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