Auriferous Quartz Matrix (Raw Gold Ore Specimen)
Raw Gold (Ore/Matrix Specimen) · Natural Yellow Gold in crystalline form or microscopic flecks within host rock.
Purity: Likely 20K-23K (83%-96%) in its natural state; purity varies by geological location.
Type
Raw Gold (Ore/Matrix Specimen)
Purity
Likely 20K-23K (83%-96%) in its natural state; purity varies by geological location.
Gold Type
Natural Yellow Gold in crystalline form or microscopic flecks within host rock.
Weight
Estimated 250g - 450g for the total specimen; gold content likely less than 1% of total mass.
Description
A rugged, auriferous quartz specimen featuring heavy iron-oxide staining (gossan) and crystalline quartz structures. The item serves as a 'matrix' where gold typically resides in lode deposits. The surface shows a vuggy texture where hydrothermal fluids once deposited minerals.
Key Features
Gossanous texture (rusty appearance), quartz crystal points, and highly mineralized 'dirty' appearance typical of high-yield gold-bearing quartz veins.
Color & Finish
Natural raw yellow gold luster against a matte, iron-stained earthy brown and grey matrix.
Hallmarks & Stamps
None; natural specimen. No professional stamps or maker marks are present.
Dimensions Estimate
Approximately 8cm x 6cm x 4cm (Width x Height x Depth) based on hand scale.
Gemstones & Inlays
Includes quartz crystal inclusions and possible iron oxides (limonite/hematite) as natural inlays.
Clasp & Closure
Not applicable; natural geological specimen.
Chain & Links
Not applicable; raw ore.
Craftsmanship Details
None; natural geological formation shaped by hydrothermal pressure and tectonic activity.
Authentication Indicators
The presence of quartz, iron oxides, and a crystalline structure is consistent with gold-bearing lodes; however, visible gold 'flashes' require magnification to distinguish from chalcopyrite or pyrite (Fool's Gold).
Origin & Maker
Natural geological origin; possibly from an artisanal or small-scale mining operation (ASM).
Era & Period
Contemporary discovery; geological formation likely dates back millions of years (Archean or Proterozoic).
Age Estimate
Geologically ancient; recently extracted from the earth.
Cultural Significance
Represents the primary source of wealth for many civilizations; highlights the raw labor required for gold extraction in mining history.
Condition Notes
Fair (as a specimen); rough and uncleaned. High levels of oxidation and dirt present on the surface.
Value Estimate
Primarily speculative or educational; value depends entirely on the 'melt' yield after crushing and processing, usually $50-$200 as a collector specimen.
Care & Maintenance
Keep dry; clean with distilled water and a soft brush if necessary. Avoid harsh acids which may dissolve the host matrix or carbonates.
Similar Items
Pyrite (Iron Sulfide), Chalcopyrite (Copper Ore), or Silver-bearing Galena; all can mimic the weight or appearance of gold-bearing ore.
Interesting Facts
The 'rusty' look is a classic indicator for prospectors; gold is often found in 'vugs' or holes where other minerals have weathered away.