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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

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Last modified 06-14-01 (jmw)