Amethyst Geode - Reflects Light Beautifully
This amethyst geode has a flat base, so it stands upright.
A geode is a rock with a hollow cavity in which crystals have grown slowly over millions of years. These cavities form in volcanic or sedimentary rocks. Over time, mineral-rich groundwater seeps into the space. As dissolved minerals are deposited, crystals begin to grow.
This process can continue for millions of years. The amethyst crystals may be smaller if growth stopped earlier, usually because the supply of mineral-rich water decreased or stopped completely. When the flow of dissolved minerals stops, so does crystal growth.
This geode, from Uruguay, exhibits excellent colour, and the crystals reflect from almost every angle.
Amethyst geodes of this size are easy to display and make thoughtful gifts. To prevent the colour from fading, amethyst should be positioned away from direct sunlight.
