Jannah Theme License is not validated, Go to the theme options page to validate the license, You need a single license for each domain name.
غير مصنف

What’s the deepest-occurring gemstone on Earth?


In Virgin Valley, Nevada, it’s possible to spend an afternoon digging for rare black fire opals, while visitors to Coalinga, California, can scour the dirt for pieces of the state’s official gemstone, benitoite. At Arkansas’ Crater of Diamonds State Park, aspiring gemhounds pay just $10 to hunt for the world’s most sought-after stones.

Each of these outings requires little more than hand tools, yet most gemstones originate between 3 to 25 miles (5 to 40 kilometers) belowground, and some extend far deeper.

اترك تعليقاً

لن يتم نشر عنوان بريدك الإلكتروني. الحقول الإلزامية مشار إليها بـ *

زر الذهاب إلى الأعلى