Native Crystalline Gold in Quartz Matrix
Raw Gold (Specimen, Nugget, Flake) · Native Yellow Gold (Naturally occurring unrefined alloy)
Purity: High Purity Native Gold (typically 80% to 92% / 20K to 22K)
Type
Raw Gold (Specimen, Nugget, Flake)
Purity
High Purity Native Gold (typically 80% to 92% / 20K to 22K)
Gold Type
Native Yellow Gold (Naturally occurring unrefined alloy)
Weight
Indeterminate based on visual of host rock; gold content likely less than 1 gram visible
Description
An raw, unrefined specimen of native gold embedded within a dark, highly mineralized quartz matrix. The gold exhibits a distinct crystalline habit rather than a water-worn nugget appearance, suggesting it was recently freed from its primary lode source. The host rock shows significant iron-oxide staining and dark silicate minerals, characteristic of gold-bearing hydrothermal veins.
Key Features
In-situ crystallization, irregular dendritic-like gold clusters, and a high-contrast dark matrix.
Color & Finish
Deep metallic yellow with slight orange-brown toning/patina from iron oxidation in the matrix
Hallmarks & Stamps
None (Natural geological specimen)
Dimensions Estimate
Macro view; estimated field of view 1cm - 3cm across
Gemstones & Inlays
None; natural Quartz and Iron-rich host rock (Gossan/Matrix)
Clasp & Closure
None (Natural specimen)
Chain & Links
N/A - Irregular crystalline structure and jagged rock edges
Craftsmanship Details
Natural geological forces (hydrothermal deposition); no human craftsmanship involved.
Authentication Indicators
Sectile (ductile) appearance of metal, lack of sharp crystal faces (unlike pyrite), and characteristic rich yellow hue under magnification.
Origin & Maker
Natural Geological Deposit; Earth-formed (Potential Lode Deposit)
Era & Period
Modern Discovery; Geological Geochronology (Millions of years old)
Age Estimate
Mesozoic to Cenozoic geological formation; recently extracted
Cultural Significance
Represents the 'Gold Rush' archetype of a primary ore deposit; significant for geological study and prospecting history.
Condition Notes
Very Good (Specimen Grade). Gold is clearly visible and not overly obscured by oxidation; matrix appears stable.
Value Estimate
Specimen Value: $50 - $150 based on visibility. Primarily valued as a mineral specimen rather than melt weight.
Care & Maintenance
Keep dry; avoid mechanical abrasion. Do not use chemical cleaners as they may dissolve the host rock or alter the gold's natural patina.
Similar Items
Pyrite (Fool's Gold) - differs by being brittle and having cubic structures; Chalcopyrite - differs by having a greenish-black streak/tarnish.
Interesting Facts
The majority of the world's gold is found in veins like this but is often too microscopic to see; specimens with visible 'leaf' or 'wire' gold are highly prized by mineral collectors.