Gemstones
Mining Engineering
By: D.W. Olson
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Abstract
The estimated value of natural gemstones produced from U.S. deposits during 2012 was $11.1 million, a slight increase from 2011. U.S. gemstone production included agate, amber, beryl, coral, garnet, jade, jasper, opal, pearl, quartz, sapphire, shell, topaz, tourmaline, turquoise and many other gem materials.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Gemstones |
| Series title | Mining Engineering |
| Volume | 2013 |
| Issue | July |
| Year Published | 2013 |
| Language | English |
| Publisher | SME |
| Contributing office(s) | National Minerals Information Center |
| Description | 2 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Mining Engineering |
| First page | 45 |
| Last page | 46 |
| Google Analytic Metrics | Metrics page |