Mining Engineering


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During 2005, the estimated value of natural gemstones produced from US deposits was $13.9 million. Production included agates, amber, beryl, coral, garnet, jade, jasper, opal, pearl, quartz, sapphire, shell, topaz, tourmaline, and torquoise among others. For the year, the US gemstone trade with all countries and territories exceeded $26 billion. There are indication that there may be continued growth in the US diamond and jewelry markets in 2006.
Publication type Article
Publication Subtype Journal Article
Title Gemstones
Series title Mining Engineering
Volume 58
Issue 6
Year Published 2006
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Mining Engineering
First page 31
Last page 32
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