Calcium carbonate containing rocks (Cretaceous limestone and fossils) at Walnut Creek, in Austin, TX. UPDATE: It turns out the oyster fossils fluoresce yellowish under a blacklight.
The Bradley University Chemistry Club Demo Crew is grateful for support from the Illinois Heartland Section of the American Chemical Society and the Illinois Space Grant Consortium.
![MHA rᴇᴀᴄᴛ ᴛᴏ nᴇw UA ᴛᴇᴀᴄhᴇr ᴀs Vᴇnᴛi(Bᴀrʙᴀᴛᴏs)_[1/1]](https://i.ytimg.com/vi/N3-Y2cRpKKc/mqdefault.jpg)
![КОРОЧЕ ГОВОРЯ, НОВАЯ ЖИЗНЬ [От первого лица] Игра в реальной жизни](https://i.ytimg.com/vi/2PBVzMxQZzk/mqdefault.jpg)
