Polished Dendritic Agate - Madagascar Wand point Beautiful chevron amethyst tower with

Beautiful chevron amethyst tower with deep purple colors

is found on a soapstone/serpentine type  matrix

the surface of these specimens absolutely comes alive

They are excellent educational pieces for demonstrating how hydrothermal activity alters volcanic rock chemistry

Polished Dendritic Agate - Madagascar Wand point Beautiful chevron amethyst tower withThis Polished Dendritic Agate is a striking mineral specimen sourced from the rich, diverse geological deposits of Madagascar. As a semi translucent variety of chalcedony quartz, this material is defined by its complex, tree like or fern like inclusions trapped inside a clear to milky silica body. These delicate structures are formed by a process known as dendritic branching, which occurs when iron and manganese rich mineral fluids seep into micro