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Magliano Jasper Sphere

Time left
17g 3h 50m 34s
13/11/2026 14:40:00
Estimate
€ 100,00 / 200,00
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Description

Magliano Jasper Sphere

Cm 9,9
SiO₂ (chalcedony/microcrystalline quartz, jasper variety) — brecciated microcrystalline structure, trigonal system
More information
It takes its name from the village of Maligano on the island of Sulawesi (Indonesia) and is a recently discovered jasper that has only been on the international market for a few years. It is believed to have formed in ancient volcanic areas with hot springs: the original, fractured jasper was re-cemented by siliceous solutions that filled the cracks with contrasting-colored material, producing its characteristic mosaic-like brecciated structure. Colors range from red and orange to shades of gray and blue, sometimes featuring small druse-like quartz cavities and dendritic patterns reminiscent of river landscapes with small bushes. Hardness 6.5–7 on the Mohs scale, density approximately 2.6 g/cm³.

Highly prized by gem cutters and collectors for its brecciated and landscape-like patterns, which are unique to each piece; used for beads, hearts, cabochons, and carved objects. Since this is a relatively new commercial material, information on the deposit is still limited and is partly derived from sellers rather than scientific literature.
Time auction 1251

Historia Naturalis

mon 26 October - fri 13 November 2026
The description sheets do not always indicate the state of conservation of the goods, we invite you to always request the condition report before making your offers
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