Agate Quartz Geodes. "EXTRA" QUALITY
Origin: Rio Grande do Sul (Brazil)
Size: approx. 4-6 cm
SET OF 24 UNITS
The agate and quartz geode from Rio Grande do Sul (Brazil) is one of the most iconic treasures of global mineralogy. It is formed by the infiltration of silica-rich fluids into the gas bubbles of ancient basaltic lava flows, creating unique formations that combine the banded structure of agate with the crystalline core of quartz.
