USGS Frequently Asked Questions

Question: What is "Fool's Gold"?

Answer:

Fool's Gold can be one of three minerals; the most common mineral mistaken for gold is pyrite, chalcopyrite may also appear gold-like, and weathered biotite mica can mimic flake gold.

Source of this FAQ:
http://minerals.usgs.gov/west/factfaq.shtml

Return to list

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.usgs.gov
Page Contact Information: USGS Web
Page Last Modified: