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Gorgeous Amethyst Geode w/ Columnar Quartz Crystal

South America, Bolivia, millions and millions of years old. A beautiful petal-shaped section of amethyst (purple quartz) with a lovely pale-yellow columnar quartz inclusion rising vertically in the center. Geodes form from hollow bubbles inside a layer of rocks. Rain or other water sources falling on the exterior of the rock cause the elements within it to flow into the bubbles which form the fine crystals like these. Trace variations of mineral content, especially iron, copper, or magnesium, can have significant effects. The purple hue of amethyst crystals comes from the iron content in silicate. Size: 10.5" W x 14.5" H (26.7 cm x 36.8 cm).

Condition: Underside and verso are sealed and has some plastering to surface, and peripheries are still exposed. Some crystals have sharp points, though all are in excellent condition. A couple of stable pressure fissures are on central quartz column.

Provenance: ex-private Bolivian collection

All items legal to buy/sell under U.S. Statute covering cultural patrimony Code 2600, CHAPTER 14, and are guaranteed to be as described or your money back.

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