Natural Alluvial Gold Nugget in Quartz Host Matrix
Raw Gold (nugget / specimen) · Natural Yellow Gold / Native Element Gold
Purity: High Karat Raw State (Estimated 20K-23K / 83%-96% fineness); natural nuggets typically contain trace silver and copper.
Type
Raw Gold (nugget / specimen)
Purity
High Karat Raw State (Estimated 20K-23K / 83%-96% fineness); natural nuggets typically contain trace silver and copper.
Gold Type
Natural Yellow Gold / Native Element Gold
Weight
Estimated 2 to 4 grams; native gold is extremely dense (SG 19.3), making such pieces surprisingly heavy for their size.
Description
A raw, unrefined gold nugget partially fused with its host matrix. The piece shows significant metallic luster and deep yellow saturation characteristic of high-purity native gold, appearing as 'shot' or 'stringer' gold within the surrounding rock. It possesses a rugged, organic aesthetic prized by mineral collectors.
Key Features
Distinct high-density metallic inclusions; contrasting multi-colored matrix; rough water-worn texture suggesting alluvial travel.
Color & Finish
Deep buttery yellow gold inclusions against a dark grey-to-greenish host rock (schist or volcanic matrix) with white quartz veins.
Hallmarks & Stamps
None; as a natural mineral specimen, there are no refinery stamps or maker marks.
Dimensions Estimate
Approx. 12mm x 10mm x 6mm (Small specimen size)
Gemstones & Inlays
None; however, the white quartz visible in the lower left acts as a natural mineral 'inlay' typical of lode gold.
Clasp & Closure
None (Raw mineral specimen)
Chain & Links
Not applicable; raw jagged crystalline structure with naturally weathered edges.
Craftsmanship Details
Natural hydrothermal formation; crystals have been naturally tumbled or eroded, showcasing 'organic' geological architecture.
Authentication Indicators
Metallic luster that does not change at different angles (unlike mica); high density; malleability indicators; lack of cubic cleavage (unlike pyrite).
Origin & Maker
Natural Geological Origin (Earth-made); likely from a river gravel deposit or hard rock mine outcrop.
Era & Period
Geological / Prehistoric; formed millions of years ago through hydrothermal deposition.
Age Estimate
Geological age (Cenozoic to Paleozoic depending on region); extraction/discovery date unknown.
Cultural Significance
Symbolizes the 'Gold Rush' era; raw gold has been used as currency and status symbols in its unrefined state for millennia.
Condition Notes
Natural Raw State; displays typical geological fracturing and surface oxidation on the host rock. Gold portions are intact.
Value Estimate
Primarily based on intrinsic gold weight plus a 'specimen premium' of 20-50% over spot price for collectors.
Care & Maintenance
Do not use ultrasonic cleaners as they may shatter the host rock matrix. Clean with a soft brush and distilled water only.
Similar Items
Pyrite (Fool’s Gold) which is brittle and lighter; Chalcopyrite; or 'Gold-bearing Quartz' which typically has more white matrix.
Interesting Facts
Over 95% of the world's gold has been melted down; finding a raw nugget of this size in its original matrix is statistically rare.