Stone spheres of Costa Rica (Garbo, stone softening)

There the potion pops up again. Stones made from Garbo. I believe thats 4-5 on hardness scale. Some local legends state that the native inhabitants had access to a potion able to soften the rock. Research led by Joseph Davidovits of the Geopolymer Institute in France has been offered in support of this hypothesis, but it is not supported by geological or archaeological evidence (No one has been able to demonstrate that gabbro, the material from which most of the balls are sculpted, can be worked this way.)
 
https://en.wikipedia.org/wiki/Stone_spheres_of_Costa_Rica

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.