The deep, even color in these smoky quartz crystals comes from slow radiation. Smoky quartz and orange spessartite on feldspar. © Rob Lavinsky, www.iRocks.com. Used with permission.
Brown Quartz Specimen
The deep, even color in these smoky quartz crystals comes from slow radiation. Smoky quartz and orange spessartite on feldspar. © Rob Lavinsky, www.iRocks.com. Used with permission.
Article: How Does Quartz Form?
Credit: www.iRocks.com
| Gemstone | Quartz, Smoky Quartz |
| Natural or man made | Natural |
| Gem State | Specimen |
| Color | Brown |
| Transparency | Transparent |