Agata e Quarzo di Marovato – Madagascar Green Calcedonio...

Elegant free-form carved and polished from a single natural block of agatized quartz (agate) and quartz coming from the Marovato area along the northwest coast of Madagascar. The workmanship follows the stone’s original profile, transforming it into a vertical, compact and harmonious form, characterized by a gently rounded summit and a flat base that allows it to be displayed without supports. The dominant element is a large concentric formation in yellow ochre, honey and golden-brown tones, enclosed within a partially translucent mass of quartz and chalcedony. Viewed from the front, this structure creates the impression of a nucleus suspended within the stone, surrounded by a sequence of thin irregular bands that follow its contour. Its elongated and asymmetrical shape recalls a drop, a seed, or the profile of an island seen from above. The central part presents warm, compact tones, interwoven with delicate cream, yellow and reddish-brown variations. Moving toward the outside, the color gradually dissolves into lighter and more transparent zones, rich in tiny inclusions, veils and internal crystallizations. Some surfaces show a delicate granular texture which, under light, produces a multitude of small reflections. Along the outer edge, a dark green band emerges, more intense on one side and near the summit. This natural frame contrasts with the golden core and with the translucent areas of the quartz, defining the piece’s silhouette and giving it remarkable visual depth. Rotating the stone, the central formation progressively changes appearance: on one side it appears darker and more compact, while on the opposite side it becomes brighter, broader and clearly outlined. Agate is a variety of chalcedony formed through the progressive deposition of silica inside cavities and fractures of the rock. Different growth stages produced the concentric bands, while the presence of iron compounds imparted the yellow, ochre and brown tones. In the more open portions of the cavity, the silica had room to develop into more transparent and locally crystalline quartz. The polishing allows light to penetrate the superficial layers, highlighting overlays, inclusions and color transitions that would remain hidden in the raw material. Each angle offers a different reading of the internal structure and reveals the three-dimensional continuity of the bands inside the block. An essential and evocative free form, in which the golden core seems guarded by a translucent quartz enclosure and a delicate green frame. An authentic mineral landscape, shaped by the slow deposition of silica and made fully visible by the workmanship.

估價:$246.86

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