Aura Rainbow Geode (1) Crystals Raw Minerals Stones Rocks Collecting

Little Geode of Rainbow Aura Crystal Quartz 12 gr mm 39 x 22 x 16 Raw Minerals Stones Rocks for Collection, polished edge, cave with crystals, only a piece, as in photos.
Also available Druses and Crystals of Aura Rainbow Quartz, at this link.

A Geode is a secondary geological formation within sedimentary and volcanic rocks. Geodes are hollow, loosely spherical rocks in which masses of minerals, which may include crystals, are isolated. Geodes are formed from masses of magma whose non-homogeneous and very slow cooling inside allows the minerals to arrange themselves in an orderly manner according to the crystalline lattice. In fact, they represent gas bubbles variously modeled by the greater or lesser flow of the magmatic liquid. The lower the viscosity of the liquid, the more elongated can be the shape of the geode whose sharpest part coincides with the direction of flow.Groups of "grown" crystals can develop on the internal walls of these geodes thanks to the particular chemical composition and the relatively high temperature of the hydrothermal fluids percolated through the rock. Most geodes contain clear quartz crystals, while others have purple amethyst crystals. Still others may have bands of agate, chalcedony or jasper or crystals such as calcite, dolomite, celestite, zeolites, selenite, carbonates and sulphates, etc. The banding and coloration of the geode are the result of varying impurities.
It can vary in size from a few centimeters up to, in exceptional cases, a few metres, real caves.
Geodes come from Brazil, Uruguay, Namibia, Mexico, United States. Geodes are also abundant in the Mendip Hills in Somerset, England, where they are known locally as "potato stones".

The Rainbow Aura borns from the bond of pure quartz with gold and titanium and are believed to possess numerous properties in crystal therapy. The molecules of titanium and gold are bonded to the quartz from natural electrostatic charge of the crystal in a process known as magnetron ionization. The bright color of the "flame Aura" is the result of interference effects produced by the optical layers of titanium. Since only the electric energy is used to deposit layers of titanium and create these colors, very little heat is involved in the process and the integrity of the crystal is thus kept. The crystal so don't becomes fragile or prone to breakage as in other processes.