HUGE Extremely Rare Polyhedral Agate - Brazil (1970s) This specimen of aquamarine is

This specimen of aquamarine is one up there among the best

Size:  ~2 in

and determination

Although this is not the largest specimen of cobaltoan calcite ever

and other minerals

HUGE Extremely Rare Polyhedral Agate - Brazil (1970s) This specimen of aquamarine isTo have an agate specimen similar to this in your collection is something special, to say the least. Most of these agates that have found their way on the market have either been gobbled up by private collectors or cut into many slices to maximize profit. Do not miss your chance at such a rare mineral specimen! Unlike many of the other specimens in our galleries, this piece has very defined crystal formations in the center! Size: 5. 3 x 5. 3 x 2. 1