ESTETICI GEMELLI 的 紫色骷髅水晶 AMETISTA，AMETISTA TRAMOGGIA 矩陣晶體 - 高度: 56 mm - 闊度: 50 mm- 41 g

From our selection of collectible minerals, we present a splendid group of twin crystals of Amethyst from the Capurru Quarry, Osilo, Sardinia.

Furthermore, it features two twin crystals with a skeletal habit (trammoggio), of an intense violet color, with clearly visible terminations and associated with small white quartz crystals on a rock matrix, rare elements that increase both its aesthetic value and mineralogical importance.
The specimen stands out for the quality of crystallization and for the overall aesthetic balance, with features that enhance its natural structure and visual impact.

Amethyst is the violet variety of quartz (SiO2); its color is due to traces of iron in the crystal lattice combined with natural irradiation during its formation. Skeletal or 'tramoggia' crystals form when growth at the edges and corners of the crystal is faster than that of the central faces, leaving stepped depressions on the surface. Sardinia, particularly the Osilo area, is known among collectors for finds of high-quality amethysts in hydrothermal veins associated with volcanic rocks.

This is an ideal specimen for mineral collections, display, and for those who appreciate the natural beauty of minerals, even in the context of crystal therapy and lithotherapy, in accordance with the properties traditionally associated with the mineral species.

All minerals are 100% natural and untreated, with rare exceptions always indicated in the description. Photos are taken with professional lighting to best enhance colors and details; however, slight tonal variations may occur depending on the device or ambient light.

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