Rare Gold Crystals on Iron Oxide Matrix
Placer County, California
This exceptionally rare gold specimen showcases a distinctive mineral composition unique to its locality. Its matrix features a striking combination of iron oxide (a form of limonite), native arsenic, and native lead—an extraordinary mineral assemblage never documented from any other locality in the state. The native gold crystals, with an impressive purity of approximately 95% gold and 5% silver, provide a warm, saturated yellow hue with exceptional luster. The crystal morphology is equally remarkable, displaying a mix of modified flat geometric crystals and rich clusters of lustrous, leafy gold formations. The native gold being visible from all sides, this specimen offers an unparalleled representation of its origin and stands as a true collector's treasure.
Dimensions: 14 x 12 x 6 mm
Weight: 1.54 grams