USGS - science for a changing world

Science Topics

Maps, Imagery, and Publications Hazards Newsroom Education Jobs Partnerships Library About USGS Podcasts/RSS

Natural gemstones

http://pubs.usgs.gov/gip/gemstones/

Online booklet on natural gemstones, terminology, geologic environment, birthstones, U.S. production, chemical formulas, and references.

U.S. Geological Survey General Information Product
Related topics:
Gem resources, Mineralogy, Reports

Metadata as [FGDC] - [XML] - [ISO]

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.usgs.gov/science//science/cite-view.php?cite=873
Page Contact Information: Ask USGS