One Thousand Ways to Make Money by Page Fox

214. MINERAL COLLECTIONS FOR SCHOOLS.--Dana’s Mineralogy gives fourteen

hundred places in the United States where rare minerals are found. There are 240,968 public schools, and each one needs a mineral collection. Why has no one thought of gathering these rare stones and selling them to our public schools? At $1 a school, the sale should be $240,698, but many rare collections would bring $5, and even $10 each.