Spectacular Chevron Amethyst Slice - Intense Violet and...

atural geometries of purple and white quartz with iron inclusions — This lot features an imposing Chevron Amethyst section from Tanzania, skillfully mounted on a black metal base with a minimalist design. The specimen stands out for its remarkable size and its spectacular internal structure, where the iconic “chevron” (V) bands create a geometrical pattern with a strong visual impact. The main surface, cut and polished, reveals a microcosm of crystals and colors, transforming a geological fragment into an authentic natural sculpture. Direct observation of the sample allows appreciation of the complex color tapestry. Intense bands of dark purple amethyst, almost black in some spots, alternate with layers of milky white quartz and areas of clearer, more translucent quartz. This alternation is not random, but follows a precise angular pattern that gives rise to the typical V motif. Further enriching the color composition are veins and blotches of reddish-brown, attributed to hematite or goethite inclusions, which insinuate themselves between the quartz layers, creating a warm contrast with the cool tones of the violet. The outer edge has been left in its natural state, showing the rough and irregular surface of the original crystalline mass. Mineralogically, Chevron Amethyst is a quartz variety that testifies to a discontinuous growth process. It forms within fractures and cavities of the rock, where silica-rich hydrothermal fluids deposited in successive stages. Temperature, pressure, and chemical composition variations of the fluids produced alternating growth of amethyst quartz (colorating from trace iron irradiated naturally underground) and white quartz. The orientation of the crystals as they grow along the cavity walls determines these fascinating V geometries, making each specimen unique. The generous size and aesthetic quality of this slice make it a piece of great interest both for mineral collectors and for interior design. Its slender shape and the richness of internal details qualify it as a display object, capable of drawing attention in any setting. Placed on a bookshelf, on a console, or in a professional study, this specimen acts as a focal point of natural elegance. It is a perfect piece for a modern “Cabinet of Curiosities” or Wunderkammer, a dialogue between the wonder of nature and the taste for design. The custom-made base, included in the lot, ensures a stable and elegant presentation, ready to be admired.

Estimation:€400

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