The estimated value of natural gemstones produced from U.S. deposits during 2011 was $10.6 million, a 6-percent increase from 2010. 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 | 2012 |
|---|---|
| Title | Gemstones |
| Authors | D.W. Olson |
| Publication Type | Article |
| Publication Subtype | Journal Article |
| Series Title | Mining Engineering |
| Index ID | 70044892 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | National Minerals Information Center |