1.85" Pakimer Diamond with Carbon Inclusions - Pakistan
This is a beautiful, double-terminated "Pakimer Diamond" that was collected from Khuzdar, Balochistan, Pakistan. There are small black inclusions (likely carbon) within this specimen.
Pakimer diamonds aren't diamonds at all, but instead are quartz crystals that were collected from Pakistan. The name is a derivative of "Herkimer diamonds" which were originally described from Herkimer, New York. They resemble Herkimer diamonds in that many are double terminated and beautifully clear, however Pakimer diamonds have their own appealing characteristics. Many Pakimer diamonds contain black inclusions which are said to be carbon, as well as fluorescent petroleum oil inclusions.
Silicon Dioxide, also known as SiO2 or Quartz, is the second most abundant mineral in the Earth's crust. Quartz crystals generally grow in silica-rich, hot watery solutions called hydrothermal environments, at temperatures between 100°C and 450°C, and usually under very high pressure. Quartz veins are formed when open fissures are filled with hot water during the closing stages of mountains forming, and can be hundreds of millions of years old.