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This is an amazing extra-large Agate egg with lots of character from Madagascar.  It measures 4 3/8 ″ tall x 6 1/4″, weighs over 6 pounds and has a nice polish. It has gorgeous color, fabulous crystal, amazing banding, subtle “rainbow” reflections, surprising cavity and wonderful design. A must have for any collection.

In stock

SKU: GAL935 Category: Tags: , ,


Agates mostly occur as nodules in volcanic rocks or sedimentary rocks, in which a cavity has been filled with silica(Quartz). As groundwater passes through a cavity in the host rock, layers of silica are repeatedly deposited on the interior of the cavity, making the concentric bands agates are known for. Depending on what elements are present alongside the silica in the groundwater, varying colors of bands will be produced. It is very unlikely that you would ever find an exact duplicate of any type of agate, Brazilian or other.

Additional information

Weight6.25 lbs
Dimensions4.375 × 4.375 × 6.25 in

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