Buy exclusive rare Amethyst Calcite Geode from Uruguay - 23cm, 4.52kg UNIQUE CRYSTALS Zurich

Large, unique amethyst cutbase from Uruguay. With an impressive height of 23 cm and a weight of 4.52 kg, this specimen is a true eye-catcher.

Formation: Amethyst, a violet variety of quartz, forms under specific geological conditions:

1. Magmatic activity: In volcanic regions, hot magma flows through the Earth's crust and forms cavities in the rocks.
2. Hydrothermal solutions: Hot, mineral-rich solutions containing silicon dioxide (SiO₂) and iron fill these cavities. Iron compounds are responsible for the purple color of amethyst.
3. Cooling and crystallization: As the solution cools, the silicon dioxide crystallizes and forms amethyst crystals. The slow cooling process allows for the growth of large, clear crystals.
4. Calcite formation: In some cases, as in this particular piece, additional calcite crystals grow in the cavity.

Special features:

• Beautiful and unique: Each amethyst is unique with a fascinating structure and intense violet color.
• Calcite Points: The natural formation of calcite points adds an additional aesthetic dimension to this piece.
• Sugary Calcite Formation: Inside you will find a rare, sugary sparkling calcite formation that beautifully reflects the light and gives the amethyst a special depth.