whatisit?

I have a 12 set of the chalices and I have no idea what is the material its made and the year and origin of it. I’d appreciate if someone told me

Hi all! Iowan here, Found this geode-like rock in a creek in Eastern Iowa.... very unique top and bottom though, anyone have any idea of what it is? Hoping my images loaded!

what is this?it's roughly 4 inches tall triangular in shape and has Shiney metallic core?

Hi everyone! I discovered this tubular, small rock a few years ago and stumbled across it just recently emptying some boxes, when it struck me that I really don't know much about it. It is approximately 3cm long and 1cm in diameter. Both ends are uneven but one is smoothed/eroded/soft and...