Calcium carbonate precipitate resembling so-called cave pearls.
![Calcium carbonate precipitate resembling so-called cave pearls. Vápencové útvary připomínající tzv. jeskynní perly.](https://webarchiv.lib.cas.cz:443/wayback/20190418160334im_/https://www.gli.cas.cz/en/system/files/users/public/zajic_5/gallery_assist/gallery_1229/prev/4.jpg)
Calcium carbonate precipitate resembling so-called cave pearls.
Calcium carbonate precipitate resembling so-called cave pearls.
Calcium carbonate precipitate resembling so-called cave pearls.