Chalcedony & Druzy Quartz - Bulgaria It is the same chemical

It is the same chemical composition as the more famous purple amethyst

polished malachite slabs such as this one do not stay on the shelves long

8-ton "El Chaco"

This mineral has been found all over the world including Brazil

Chemical Formula: SiO2(+Al2O3)

Chalcedony & Druzy Quartz - Bulgaria It is the same chemicalBulgaria has been producing some absolutely extraordinary specimens over the past few years. Here is a great example of chalcedony coated in druzy quartz crystals giving it a sugar like quality. Size: 5. 1 in. Weight: 18. 3 oz Location: Bulgaria Quartz is the second most abundant mineral on Earth accounting for around 12% of the Earth's crust. Its name is derived from the German word "quarz" meaning hard. Quartz can form in trigonal or hexagonal