Native Crystalline Gold in Quartz Matrix
Raw Gold (Nugget/Specimen) · Natural Native Gold; deep yellow with high metallic luster, likely associated with a hydrothermal quartz vein.
Purity: Approximately 20K to 23K (83% - 96% purity). Natural gold is rarely 100% pure and usually contains silver or copper.
Type
Raw Gold (Nugget/Specimen)
Purity
Approximately 20K to 23K (83% - 96% purity). Natural gold is rarely 100% pure and usually contains silver or copper.
Gold Type
Natural Native Gold; deep yellow with high metallic luster, likely associated with a hydrothermal quartz vein.
Weight
Indeterminate from image; specific gravity suggests gold is 19.3x heavier than water. Visible gold may weigh between 0.5 to 2.0 grams.
Description
This is a raw mineral specimen featuring native gold embedded within a quartz host rock. The gold exhibits a classic crystalline structure rather than the smoothed surface of a water-worn nugget, indicating it was likely extracted directly from a hard-rock vein (lode gold). The surrounding matrix shows heavy mineralization with iron oxides, often a 'pathfinder' for gold deposits.
Key Features
Crystalline structure, high-contrast yellow metal against white/grey quartz, and presence of iron-rich gossan (oxidized rock).
Color & Finish
Rich, buttery yellow with a natural metallic luster. The surface is jagged and crystalline, reflecting light from various angular facets typical of unrefined metal.
Hallmarks & Stamps
None. As a raw geological specimen, there are no stamps. Authenticity is determined by mineral structure and specific gravity.
Dimensions Estimate
Estimated visible gold patch: 8mm x 5mm. Matrix rock: 5cm x 5cm range (hand-specimen size).
Gemstones & Inlays
None. However, the gold is hosted in a milky-to-clear Quartz matrix with visible Iron Oxide (limonite/hematite) staining appearing as rust-colored streaks.
Clasp & Closure
Not applicable/None.
Chain & Links
Not applicable; raw mineral formation.
Craftsmanship Details
Naturally formed through hydrothermal deposition; the atoms arranged themselves into a face-centered cubic lattice over thousands of years as mineral-rich boiling water cooled in rock fissures.
Authentication Indicators
Sectility (gold is soft and can be cut/dented), high metallic luster that doesn't fade in shade, and its jagged octahedral or dendritic crystalline habit which 'fools gold' (pyrite) lacks.
Origin & Maker
Origin Unknown; visually consistent with lode gold from California (USA), Australia, or Canada. Created by geological hydrothermal processes.
Era & Period
Modern Discovery; Geological formation dates back millions of years (likely Cenozoic or Mesozoic depending on location).
Age Estimate
Pre-extraction state. Geological age is millions of years; specimen appears recently unearthed due to lack of river-wear.
Cultural Significance
Raw gold specimens have transitioned from purely industrial/refining sources to highly prized collector's items that often sell for 2x-5x the gold spot price due to their aesthetic beauty.
Condition Notes
Grade: Raw Mineral Specimen. The gold is partially obscured by the matrix. No evidence of chemical cleaning or acid treatment is visible.
Value Estimate
Melt value is based on weight, but as a specimen, it carries a 'collector premium' of 30% to 100% over the spot price of gold.
Care & Maintenance
Keep in a display case. Do not use ultrasonic cleaners as they may shatter the quartz matrix. Rinse only with distilled water if dusty.
Similar Items
Pyrite (Fools Gold) - brittle and brassy; Chalcopyrite - more iridescent; Electrum - a natural alloy of gold and silver with a much paler color.
Interesting Facts
The largest native gold specimen ever found in a single quartz vein was the Holtermann Nugget, which was actually a slab of quartz containing 3,000 ounces of gold.