Brazilian golden agate slice on brass base
PUMI2646-2
This slice of Brazilian agate illustrates the complex geological phenomena that gave rise to it. Formed in volcanic cavities trapped in basaltic lava, it results from the progressive deposition of silica, infiltrated by hydrothermal solutions rich in mineral oxides such as haematite and limonite.
The room is predominantly white and beige, with subtle touches of golden brown. This gradation of colours creates a soothing, soft visual effect, contrasting with the darker, irregular edges. Its almost ‘bubbled’ appearance is explained by incomplete crystallisation in some areas, where the silica has not completely filled the cavities, leaving irregular inclusions and shapes that add to its unique character.
Mounted on a brass base, this slab reveals even more detail when the light shines through it (pictures 7, 8 and 9) offering a subtle interplay between transparency and opacity, bearing witness to its long geological history.
The room is predominantly white and beige, with subtle touches of golden brown. This gradation of colours creates a soothing, soft visual effect, contrasting with the darker, irregular edges. Its almost ‘bubbled’ appearance is explained by incomplete crystallisation in some areas, where the silica has not completely filled the cavities, leaving irregular inclusions and shapes that add to its unique character.
Mounted on a brass base, this slab reveals even more detail when the light shines through it (pictures 7, 8 and 9) offering a subtle interplay between transparency and opacity, bearing witness to its long geological history.
