Banded Agate with a Central Cavity of Sparkling Quartz...

Spectacular spherical geode in agate with crystalline interior and supporting base. — A geode sphere in carved and polished agate, revealing a spectacular inner cavity lined with a multitude of glittering quartz crystals. The external surface, carefully worked and polished, highlights the distinctive concentric bands of agate, with delicate color variations ranging from gray to brown, testifying to the slow and meticulous geological formation. The heart of the sphere opens into a surprising druse, where countless small quartz crystals, transparent and luminous, catch the light with captivating brilliance. This combination of densely veined external agate and the crystalline interior creates a visually striking contrast, making every corner of this piece a unique aesthetic experience. The sphere workmanship maximizes exposure of both the outer texture and the fascinating cavity. Agate is a cryptocrystalline variety of quartz, characterized by its banded structure and its resilience, which makes it ideal for carving and polishing. It typically forms within cavities of volcanic rocks, where silica-rich solutions deposit successive layers, creating the characteristic concentric designs. The quartz crystals inside the geode are the result of hydrothermal processes that saturated the cavity with mineral-rich solutions, allowing crystal growth in a protected environment. Final Technical Data: Name: Agate Geode Sphere with Quartz Crystals Classification: Carved Mineral Provenance: Brazil Material: Agate, Quartz Work: Carved and polished Dimensions: 119 × 119 × 119 mm Weight: 1947 g Support: Included Conditions: Excellent, natural. Lot code: RUA-706 DCB124

估價:$331.74

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