On a very long museum trip through the gem section, my mother told me that the floride in toothpast comes from florite, the purple crystal. I remember running through the gem section pointing out every 'toothpaste rock' to her. I didn't find out this was a trick until I was about 17 or 18
A childhood belief about chemistry

others believed things like this
- i used to believe that the no outlet signs meant that noone in that section of the street had electricityAnon
- my dad said to me once that if I swallowed toothpast one day I would die! I believed it till I was 12!!!— Floobloom
- My friends and I used to believe that if you planted a rock, it would grow a rock tree. Anon
- I used to believe that if i watched TV for too long, my eyes would turn square. As told to me by my mother.— Alex
- I used to believe the the Elton John song, "Crocodile Rock" was about a Crocodile, named Rock.Anon
- i used to believe that when i told a lie my eyes would turn purple,because that's what my daddy told me!!— Jenna