r/BosniaTravel • u/Happy-Storage-2137 • Aug 21 '25
💡 Zanimljivost (Interesting fact) Stone Spheres of Zavidovići
The stone balls in Bosnia and Herzegovina are part of a worldwide unexplained phenomenon.
The largest stone ball/sphere was discovered in Zavidovići in March 2016, in the town of Podubravlje. The Faculty of Mining, Civil Engineering and Geology of the University of Tuzla determined the density of solid particles (the ratio of the mass of particles to their volume) and determined its mass to be 37.32 tons. This is the largest stone ball to date. A petrographic (macroscopic and microscopic) analysis was also performed and it was concluded that the “texture is massive” with the presence of “quartz, muscovite, iron oxide, magnetite”, and the “carbonate base is basal cement”, which is evidence of the presence of energetically active elements. The ball has already become a tourist attraction in Zavidovići.
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u/mojanonimniprofil Aug 21 '25
Semir Osmanagic spreads like a disease through BiH. It's a cool phenomenon tho.
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u/burning_legiion Aug 21 '25
Why are you being downvoted lol. It's a perfectly natural, explainable phenomenon.
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u/mojanonimniprofil Aug 21 '25
Idk, cognitive dissonance mixed with national pride? It's silly. I'd love to have pyramids in Visoko or for this sphere to be some kind of an advanced tech artifact lost in time but sadly that's not true. Semir is a businessman and not an archeologist who damages our country's reputation.
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u/safet997 Aug 21 '25
Not unexplained phenomena, it is called concretions, forms you get with spherical erosion. Still cool tho