The estimated value of natural gemstones produced from U.S. deposits during 2010 was $8.5 million, a slight increase from 2009. 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 | 2011 |
|---|---|
| Title | Gemstones |
| Authors | D.W. Olson |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Mining Engineering |
| Index ID | 70044394 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | National Minerals Information Center |