High-Purity Raw Gold Placer Nugget / Hand-Cast Dore Gold Button
Raw Gold / Ingot (Nugget, Button, or Smelted Specimen) · Yellow Gold (Natural Alloy with Trace Silver/Copper)
Purity: Estimated 20K-22K (83%-92% Fineness)
Type
Raw Gold / Ingot (Nugget, Button, or Smelted Specimen)
Purity
Estimated 20K-22K (83%-92% Fineness)
Gold Type
Yellow Gold (Natural Alloy with Trace Silver/Copper)
Weight
Estimated 15-25 grams (0.5 to 0.8 Troy Ounces)
Description
An organic, heavyweight specimen of raw gold. This piece displays the characteristic 'mamelonated' surface typical of melted dore or a high-purity placer nugget that has been lightly smoothed by water or heat. Its color is a rich, high-karat yellow, indicating very low levels of base metal contamination.
Key Features
Water-worn texture, high density-to-size ratio, and characteristic cooling indentations on the rounded face.
Color & Finish
Brilliant buttery yellow luster with reddish-brown oxide patina and frosted crystalline surface
Hallmarks & Stamps
None visible; identifying features are based on natural surface topography and smelting cooling patterns
Dimensions Estimate
Approximately 20mm x 15mm x 12mm (irregular pebble shape)
Gemstones & Inlays
None; purely metallic with possible micro-quartz or iron-oxide host rock inclusions
Clasp & Closure
Not applicable (raw specimen)
Chain & Links
Not applicable (solid mass)
Craftsmanship Details
Natural geological formation or artisanal open-mold cast; lacks the precision of industrial minting, which adds to its unique aesthetic.
Authentication Indicators
Sustained high-luster color (not plated), lack of oxidation in pits, 'melt-set' cooling surface, and specific gravity appearance.
Origin & Maker
Likely alluvial origin (river-recovered) or artisanal mining specimen
Era & Period
Contemporary (Modern recovery or small-scale artisanal smelt)
Age Estimate
Geological age (millions of years); metallurgical recovery (within last 10 years)
Cultural Significance
Represents the fundamental 'wealth of the earth' and historical gold rush heritage synonymous with human exploration.
Condition Notes
Excellent natural condition; displays typical surface pitting and minor contact marks consistent with raw precious metal.
Value Estimate
Primarily determined by melt value (Current Spot Price x 0.90 Purity) plus a 10-15% specimen premium.
Care & Maintenance
Clean with mild soap and ultra-soft brush; avoid acids which may strip natural patina; store in a padded gem jar.
Similar Items
Casted 24K bullion bars (more uniform) or gold-bearing quartz specimens (contains visible rock).
Interesting Facts
Natural nuggets of this size are rarer than diamonds of comparable weight and are often valued above the spot gold price by collectors.