Crystallized Gold
Agua Fria, Mariposa, California 
 
This striking native gold specimen features pronounced spinel twinning, with geometric crystals stacking and branching together to form a complex three-dimensional structure. Nearly every surface display thick, chunky geometric crystals that highlight the specimen's exceptional crystal habits. The gold has good luster and a rich, saturated buttery yellow color. This combination of distinctive twinning, robust crystal growth, and vibrant color is seldom seen from this locality.
 
23 x 12 x 8 mm
3.16 grams