Some of you are aware of my ongoing research on Ancient geopolymer stone monuments. We published several articles (see the Research Project: Geopolymer Science applied to archaelogy) on our recent discovery of organic matter in volcanic andesite. But we also found other artifacts in the same volcanic stone, which we did not publish because we cannot figure what they are. It is the purpose of this present question.
I am including a series of pictures numbered 1 to 6:
1): the already published organic matter in andesite stone.
2): sample PP1C, Pumapunku, sponge/foam like (open cells) and plagioclase crystals. The scale is in the microns range and the objects are so small that they rather look like remains of plant cell skeletons (like the phytoliths for bamboos) instead of volcanic ash glass particles (pumice).
3): a close-up of Picture (2).
4): another SEM view in the same sample PP1C, Pumapunku with "leaf-like foam", open cells with walls in the 100 nanos range (close-up).
5): EDS analysis of the "leaf".
6): This is another example of organic inclusions in volcanic stone, this time micro-organisms which could be: pollen ? Diatoms ? Bacteria ? Phytoliths ?
Joseph Davidovits, Geopolymer Institute, 20-04-2020.
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