289.00 USD
Chalcedony is a cryptocrystalline type of quartz occurring in several different forms, including onyx, agate, and jasper.
This gemstone exhibits a phenomenon called chatoyancy or iridescence throughout the stone.
Chalcedony is also known to possess slight piezoelectricity, similar to that of tourmaline, which means it can carry a small electrical charge.
Sometimes called "Mohave" and "Mt. Airy blues", originating in California and Nevada, these are a slight to moderate grayish blue color, ranging from a light to medium color intensity.
Blue chalcedony from Namibia, often called "African blue", ranges from grayish to nearly pure blue and from light to medium dark.
There is a variety of blue chalcedony found in Ellensburg, Wa. Hence its trade name, ”Ellensburg Blue”. The most valuable blue chalcedony is sourced from Oregon, USA. Its blue color is slightly modified by traces of pink, resulting in a noticeably lavender gemstone, which is nonetheless referred to as holly blue.
These blue chalcedony gems were mined in Turkey.