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Macro image of weathered rock containing aegirine, eudialyte, and a titanium-bearing silicate phase, collected from the Analcime Gorge area near Aykuayvenchorr Mountain, Khibiny Massif, Russia. The image was obtained by optical focus stacking through a microscope objective at 4× magnification with a field of view of 9 mm; the composite merges multiple focal planes to achieve full depth-of-field clarity. The sample shows advanced physical and chemical alteration: black prismatic aegirine crystals exhibit microfracturing and partial dissolution; pinkish-red eudialyte zones display pitting, leaching, and secondary white crusts; and a distinct brownish-orange phase with layered habit is preliminarily interpreted as a titanium-rich silicate—morphologically consistent with reported lorenzenite, though no chemical analysis was performed. Surface is naturally developed by geological processes, with no artificial modification. Lighting is even and directional, enhancing contrast between primary minerals, alteration products, and possible biological coatings. No digital filters or compositing beyond focus stacking were applied. This documentation serves as observational data for the study of supergene alteration in agpaitic systems. It supports educational materials in mineralogy and geology, illustrating how complex mineral assemblages degrade under surface conditions. All identifications are preliminary and speculative, pending XRD, EPMA, or Raman verification
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