Mineral resource classification is the classification of mineral deposits based on their geologic certainty and economic value.
Here's a list of the top 10 most expensive cities in the country, ranked by average monthly rent for a single person: 1. San Francisco, $2,077. 2. New York City, $1,994. 3. Boston, $1,721. 4. Washington, D.C., $1,397. 5. Seattle, $1,288.
1. New York City. The Big Apple is at the top of the list, coming in as the most expensive city in America. Monthly rent is $4,078 versus close second San Franciscoâs $3,769. One of the biggest differences between the two coastal cities is transportation; New York Cityâs being 45 percent more expensive.