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Quartz, Rhode Island
Natural
Gemstones


Version 1.1

Key Terminology
Geologic Environment
Mineral Gemstones
Birthstones
Organic Gemstones
Buyer Beware
U.S. Production
Chemical Formulas
Contacts
References
End Notes

  Quartz, Rhode Island
  Photograph courtesy of The Smithsonian Institution


Related links:
Information on Rock and Mineral Collecting

Education and Outreach
Gemstones -- Minerals Information
Geologic Information

This page is URL:https://pubs.usgs.gov/gip/gemstones/
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Last modified 12-02-10 (jmw)