Natural Raw Gold-Bearing Quartz Nugget Specimen
Raw Gold (nugget / specimen) · Natural Native Gold; untreated yellow gold with natural luster.
Purity: Likely 20K to 22K (83% - 92% purity range). Natural gold in quartz typically ranges from 75% to 95% pure gold, with the remainder usually being silver and small amounts of copper or iron.
Type
Raw Gold (nugget / specimen)
Purity
Likely 20K to 22K (83% - 92% purity range). Natural gold in quartz typically ranges from 75% to 95% pure gold, with the remainder usually being silver and small amounts of copper or iron.
Gold Type
Natural Native Gold; untreated yellow gold with natural luster.
Weight
3 to 8 grams total specimen weight. The visible metallic portion likely accounts for 1 to 2 grams of actual gold content depending on the density within the matrix.
Description
A striking natural gold-in-quartz specimen, featuring a prominent 'leaf' or 'slug' of native gold protruding from an oxidized quartz matrix. The specimen displays the classic geological relationship between precious metals and silica, with iron-stained host rock highlighting the brilliant yellow of the gold. This is a characteristic 'raw' piece that would appeal to mineral collectors and gold prospectors alike.
Key Features
Heterogeneous mixture of gold and quartz; high-purity color; natural irregular morphology; iron oxide staining providing a 'rusty' aesthetic common in high-yield gold zones.
Color & Finish
Deep, rich buttery yellow typical of high-purity natural gold. The finish is natural and unpolished with a sub-metallic luster, featuring a pitted, uneven surface known as a 'nuggety' texture.
Hallmarks & Stamps
None. As a natural geological specimen, there are no stamps or manufacturer hallmarks.
Dimensions Estimate
Approximately 12mm x 8mm x 6mm (Sub-inch scale, roughly the size of a medium bean).
Gemstones & Inlays
None. The gold is naturally encased in a crystalline quartz matrix with visible iron oxide (limonite) staining causing the reddish-brown coloration.
Clasp & Closure
Not applicable; raw mineral specimen.
Chain & Links
Not applicable.
Craftsmanship Details
Forged by geological pressure, heat, and time. Features natural hydrothermal crystallization patterns.
Authentication Indicators
Sectility (gold should be soft/malleable under a needle point unlike pyrite); high density relative to size; lack of crystalline 'cube' structures (which would indicate fool's gold); characteristic rich yellow color that does not change with lighting angles.
Origin & Maker
Natural origin; likely a placer find from a riverbed or a primary lode deposit. No specific maker as it is a product of geological mineralization.
Era & Period
Contemporary find; geologically ancient (likely millions of years old) but recently extracted from a riparian or lode source.
Age Estimate
Formation occurs over millions of years; recovery date is likely recent (within the last few decades).
Cultural Significance
Gold nuggets and specimens are symbols of discovery and the 'American Dream' associated with the 19th-century gold rushes in California, Australia, and the Klondike.
Condition Notes
Unmodified and raw. Shows natural environmental wear (likely water-worn if found in a stream). Grade: High-quality mineral specimen.
Value Estimate
The value is calculated based on the 'Spot' price of gold for the estimated weight, plus a 'Specimen Premium' of 20-50% due to its aesthetic form as a natural nugget which is rarer than refined bullion.
Care & Maintenance
Clean with mild soapy water and a soft brush to remove dirt from crevices. Avoid harsh acids that might dissolve the iron staining if the 'natural' look is desired. Store in a padded display case to prevent the quartz from chipping or the gold from being scratched.
Similar Items
Iron Pyrite (Fool's gold) which is brittle and darker; Chalcopyrite; Gold-plated river rocks (fake); Gold-filled jewelry scrap.
Interesting Facts
Most gold found in the early California Gold Rush was found in this 'quartz-gold' association. Gold is almost always found with quartz because both are deposited by hot, mineral-rich hydrothermal fluids in the earth's crust.