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A rock crystal sphere from Brazil. Inside, there is a refractive plane where light is reflected in a blue shimmer. This phenomenon is caused by a subtle growth discontinuity that acts as an optical interface within the crystal.
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A rock crystal sphere from Brazil. Inside, there is a refractive plane where light is reflected in a blue shimmer. This phenomenon is caused by a subtle growth discontinuity that acts as an optical interface within the crystal.
Rock crystal is the purest variety of quartz. The blue refraction of light is classified as iris quartz. Incident light is refracted and broken down into its spectral components at internal microstructures; a specific wavelength dominates depending on the geometry.
In this sphere, the geometry is oriented such that blue light is dominantly refracted. The phenomenon is dependent on the viewing angle. As the sphere is rotated, the blueness shifts.
A museum-quality collector's size. Brazilian deposits supply rock crystal material of this clarity from the pegmatite veins of Minas Gerais.
A collector's item with gemologically exceptional refractive optics and museum-level dimensions.
Wir beziehen unsere Kristalle direkt aus den Minen, ohne Zwischenhändler. Mehrmals im Jahr sind wir persönlich vor Ort und kennen die Familien, die diese Steine zutage fördern.
Sie erhalten einen fairen Preis für ihre Arbeit. In unseren Minen arbeiten ausschließlich Erwachsene unter sicheren Bedingungen, und davon überzeugen wir uns bei jedem Besuch.
Wie das vor Ort aussieht, zeigen wir in einem Film, der bei uns im Museum läuft.
Robust and suitable for everyday use. Clean with a soft, dry cloth, use lukewarm water if necessary.
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