SOLD to US Buyer (its impossible to find another similar looking dendrite patterns, other interesting patterns are available, thanks for viewing)
Dendritic Agate, fully natural, 10 carats, fern-like markings known as dendrites. These dendrites are iron or manganese inclusions, usually brown or black in color. Though they appear organic due to their fern-like structure, they are actually inorganic; they are formed at fine fracture surfaces through crystallization of weathered solutions of neighboring rock.
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