Amethyst-Geode im Tischformat | Brasilien Fish coarse-grained variety of the silica

coarse-grained variety of the silica mineral quartz

was durch die hervorragende Präparation nahtlos in die Gesamtstruktur integriert wurde

It was found in a now disused excavation site

Beschreibung: Natürliche Form aus dem Oligozän (vor ca

Amethyst-Geode im Tischformat | Brasilien Fish coarse-grained variety of the silicaOrigin: Brazil Size: H12cm W27cm D12cm Description: Cut and polished on one side to reveal the bed of dark purple crystals. Additional Information: Amethyst is a transparent, coarse grained variant of the silicon mineral quartz, valued for its purple color. Its physical properties correspond to those of quartz, but it contains more iron oxide than any other variety of quartz, and experts believe its color is due to its iron content.