Massive Polished Labradorite Showing Intense Blue and...

Madagascar - Collector's Specimen — Magnificent Labradorite sphere, a famous plagioclase feldspar for its fascinating optical phenomenon known as labradorescence. Cut from a block of high-quality mineral from Madagascar, this specimen has been skilfully worked and polished to achieve a perfectly spherical shape, which enhances its intrinsic beauty and allows the play of colors to be appreciated from every angle. With a substantial diameter and a weight of over 4 kilograms, this sphere is not only a mineral specimen but a true sculptural object with striking visual impact. Direct observation of the specimen, as documented in the photographs, reveals a smooth and glossy surface that serves as a window into a complex and dynamic internal world. The mineral’s mass, of a dark smoky gray color, provides the perfect backdrop for the flashes of color that ignite with changing illumination. Vast areas of the surface come alive with spectacular iridescences ranging from electric blue and cobalt to warm tones of gold, bronze, and sometimes green. These glints are not superficial; they seem to emanate from the depths of the stone, lending the specimen an almost magical aura. The Labradorescence phenomenon, or Schiller effect, is the result of light interference that diffracts through ultra-thin lamellae of different chemical composition formed during the mineral’s slow cooling. This internal structure, known as lamellar twinning, acts as a diffraction grating, splitting white light and reflecting only specific wavelengths. Rotating the sphere in the hands or under a light source causes the color flashes to appear and disappear, creating a continually evolving visual experience. The natural fracture lines and inclusions visible within the sphere testify to its geological history and contribute to the complexity of its appearance. The spherical form is particularly suited to Labradorite, as it allows uninterrupted exploration of the three-dimensional nature of labradorescence. A specimen of this size and quality is a valuable addition to any mineral collection. In addition to its scientific and collecting value, this sphere qualifies as a sophisticated interior design element. Placed on a desk, on a bookshelf, or as a focal point of a modern environment, it captures attention and stimulates curiosity, evoking the image of a small, mysterious, distant planet. Its presence is simultaneously solid and mutable, a perfect example of how nature can create works of art of unparalleled beauty."}{}]}"} {

Estimate:£627.29

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