SOLD | Amethyst-Geode auf Ständer | Brasilien white fine-grained or dense variety of

fine-grained or dense variety of the silicate mineral chert

Origin: Utah

Before the development of micropaleontological methods

Ocker- und Schwarztönen

243 to 235 million years old

SOLD | Amethyst-Geode auf Ständer | Brasilien white fine-grained or dense variety ofOrigin: Brazil Size (geode only): H83cm W66cm D24cm Net weight: 109 Kg Description: Amethyst Geode Additional Information: Amethyst, a transparent, coarse grained variety of the silicon dioxide mineral quartz, prized for its purple color. Its physical properties are similar to those of quartz, but it contains more iron oxide than any other variety of quartz, and experts believe its color comes from its iron content.