Orbicular jasper
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- Next General Meeting March 6, 2019
- Washington Mineral Database
- September 2020 Newsletter of the Nevada County Gem & Mineral Society Vol
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- DICTIONARY of GEMS and GEMOLOGY V: ;8Y the SAME PUBLISHERS
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- Stone Beads and Pendant Making Techniques Kenoyer 2003
- Volume 73 Number 9 September 2020
- The Gemstone Book
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