具鲜艳紫色晶尖的紫水晶 具有裸露本体与尖锐端部的水晶尖点 - 高度: 164 mm - 闊度: 58 mm- 485 g - (1)

自然矿物形成——深紫色调列举

Questo lotto presents an imposing crystal of amethyst from Brazil, a specimen that stands out for its remarkable size and extraordinary color intensity concentrated at its termination. The crystal presents itself to the eye in its natural integrity, a true geological sculpture that expresses the power of crystallization processes. Its elongated shape and the purity of its apex make it a piece of great visual impact and high mineralogical interest. Close observation reveals fascinating complexity. The apex of the crystal is dominated by a deep, almost regal violet, which encloses inside a clear “phantom” zoning. This feature testifies to the different growth stages of the crystal, with an initial apex that seems almost to float within the larger and more transparent structure. The faces of the termination are well defined and luminous, reflecting light and enhancing the depth of color. Descending along the body of the crystal, the violet gradually fades into a more translucent, almost milky quartz, showing the rough texture and the growth lines typical of its formation. This amethyst specimen, a precious variety of quartz (silicon dioxide), owes its iconic coloration to trace iron present in its crystal structure, activated by natural irradiation over millions of years. Crystals of this quality typically form inside cavities or geodes in volcanic rocks, where hydrothermal solutions rich in silica slowly deposit the mineral layer by layer. The phenomenon of the “phantom” visible at the apex is a valuable geological imprint: it indicates a pause in the growth process, during which a thin layer of minerals or impurities deposited on the crystal surface, only to be engulfed by the subsequent resume of crystallization. For a mineral collector, this piece represents a highly prized acquisition. The combination of significant size, a well-formed termination, and the presence of such an evident phantom places it among high-quality specimens. In addition to its scientific and collecting value, this crystal possesses undeniable aesthetic strength. It is a decor element of great character, capable of becoming the focal point of an environment—whether it be a professional study, a library, or a modern living room. Its sculptural form and its geological history make it a perfect object for a contemporary Wunderkammer.