This is a chemistry test/quiz that relates to fossil prepping and the follies that ensue. After prepping some silicified Paleozoic coral, I noticed these needle-like salty crystals. They were up to 0.5 cm long.
What do they have to do with tofu?
What are they?
How did they form; use equations or words?
How can you prevent their formation?
Good luck and have fun.