Calcium is a very white-coloured element. It strengthens your bones, but unfortunately does not strengthen the value of your heart on a Panama City black market.
Uses for Calcium
A block of calcium placed in front of the doghouse can draw fleas out of the dog, as it brings money to whoever is stupid enough to touch it and get fleas.
As for the ferry connection to South-West Nowhere, you'll have to find that yourself.
Calcium as a refreshing drink
Add soy milk to calcium and beer, and you obtain the favourite cocktail of students of Zimizmizm, the Boredom Punch!
The name comes from an old Zim koan:
Boredom is like a punch. It strikes to your face and then you want no more of it. Unfortunately, we're all out of calcium.