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If people bath in the spring then there may be oils/saponins in the water that interact with the mineralisation on the rocks. I did some Moroccan plastering once and you rub an olive soap into the fresh plaster with a stone which causes a reaction with the lime. This makes it completely waterproof. It’s a bit like limescale in the bath.

Also check out Davidovits’s book - if you haven’t already - on geopolymer chemistry. There are both alkaline and acidic routes to geopolymerisation. Something that maybe worth knowing. His website has lots of speculation on geopolymers from ancient civilisations too which might be of interest.

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Interesting - thanks for the tips.

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About 6 minutes in he starts to go into the chemistry. The chemistry is not what most would expect from minerals. There are other more detailed presentations he does on the polymerisation processes but this gives a good overview. If you look at the YouTube channel this is on you will find his replication of the methods he proposes were used to build the pyramids and other ancient structures. https://youtu.be/-J6kg1epno0

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Thanks - I found a linked video, I will address his points.

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My thoughts and prayers with Dr. Matsumoto-sama 🙏. Hoping for a speedy and full recovery ⚕️🙂.

Looking forward to the presentation…on catchup !

Off to listen to Versailles, Hizaki, Kamijo, Lareine, Jupiter, Jakura, Kaya, Schwartz Stein, Femme Fatale, Shazna, Lovebites, X Japan, Yoshiki and hide (Hideto Matsumoto) now - yep, I’m a big Visual Kei and Symphonic Metal fan 🙂

Many thanks as ever Bob-sama and many thanks Sho-sama 🙂👍💖

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We hope too, good thing is, he is trying to help even though his issues.

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Will delay till Tuesday - morning Japan time. Need to do more preparation for it.

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It was not an hour before viewing this, I was researching Bosch's owls. Not kidding. Your entry into the geopolymer analysis reminds me of another curious phrase: "The Living Rock." Always found that one odd. Onward.

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