Occasionally, turquoise replaces fossilized bones and forms pseudomorphs — an atom-by-atom replacement of one mineral with another without changing its external form — like this specimen found in the Potosi Mountain area in Nevada. The complete jaw of a rodent turned into turquoise after copper-rich solutions flowed into the fossil bed. © Rob Lavinsky, www.iRocks.com. Used with permission.
Opaque Blue Turquoise Specimen from United States
Occasionally, turquoise replaces fossilized bones and forms pseudomorphs — an atom-by-atom replacement of one mineral with another without changing its external form — like this specimen found in the Potosi Mountain area in Nevada. The complete jaw of a rodent turned into turquoise after copper-rich solutions flowed into the fossil bed. © Rob Lavinsky, www.iRocks.com. Used with permission.
Article: Turquoise Value, Price, and Jewelry Information
Credit: www.iRocks.com
| Gemstone | Turquoise |
| Natural or man made | Natural |
| Origin | United States |
| Origin details | the Potosi Mountain area, Nevada |
| Gem State | Specimen |
| Color | Blue |
| Transparency | Opaque |