# What is an approximation of how much silver could exist on the moon?

There are articles that state that silver has been found on the moon.

How could such resources be estimated?

• Your question assumes that the amount could be estimated with current data. It should be rephrased to ask if it could be estimated and then how it could be if it were possible. But it is an interesting topic, so +1 Jan 7, 2014 at 14:30

This Wikipedia page shows the abundance of silver on earth as $50$ parts per billion by mass. One could assume that the moon is not too far off that. Multiply by the mass of the moon $7.3477 \cdot 10^{22} \text { kg } \cdot 5 \cdot 10^{-8}\approx 4\cdot 10^{15}$kg