Gold natural agate slice
PUMI2554-1
Agates are part of the silicate minerals, and their origin start deep inside the earth: basaltic lava flows, full of gaz, heading toward the surface are sometimes solidified on their way. The gaz pockets that remain trapped will be filled by each hydrothermal fluid circulation. Each oxyd or mineral contained in such fluids -mainly silicate gel- will add some colors to the previous deposit: hematite, limonite, manganese or green chlorite... This slice that seems black and white becomes truly golden, when the light passes through it loke on pictures 6 and 7.
This unique piece has been sold...
