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.
Citation Information
| Publication Year | 2013 |
|---|---|
| Title | Gemstones |
| Authors | D.W. Olson |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Mining Engineering |
| Index ID | 70046539 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | National Minerals Information Center |