Gold-Bearing Mineral Specimen (Quartz/Sulfide Matrix)
Raw Gold (Lode/Hard Rock Ore) · Yellow Gold (Natural/Native Alloy)
Purity: High-purity native gold (typically 20K-23K or 83%-96% fineness in natural state). Assessment is based on the visible inclusion of metallic lusters within the host rock.
Type
Raw Gold (Lode/Hard Rock Ore)
Purity
High-purity native gold (typically 20K-23K or 83%-96% fineness in natural state). Assessment is based on the visible inclusion of metallic lusters within the host rock.
Gold Type
Yellow Gold (Natural/Native Alloy)
Weight
Indeterminate from image; host rock density varies significantly. Specimen appears hand-sized (approx. 50g–200g total weight).
Description
A raw, unrefined gold-bearing ore specimen featuring visible wire or flake gold embedded within a dark, fractured mineral matrix. The piece shows characteristic rough textures associated with lode gold deposits, where gold precipitates from hydrothermal fluids in mineral veins.
Key Features
High-contrast metallic yellow inclusions against a dark host rock; jagged, non-water-worn crystalline structure; characteristic lode gold morphology.
Color & Finish
Natural brassy to buttery yellow gold flakes and grains set against a dark, fractured, and weathered mineral matrix with oxidized surfaces.
Hallmarks & Stamps
None; natural geological formation. No man-made markings are present on raw mineral ore.
Dimensions Estimate
Approximately 5cm x 3cm x 2cm; specimen is rough, jagged, and irregularly shaped.
Gemstones & Inlays
None. The specimen consists of natural host minerals including likely quartz, iron oxides, and dark silicate or sulfide minerals.
Clasp & Closure
Not applicable; raw mineral specimen.
Chain & Links
Not applicable; naturally occurring crystalline and amorphous geological structure.
Craftsmanship Details
Entirely natural/geological. No human finishing or tool marks are evident on the metallic inclusions.
Authentication Indicators
Sectility (gold is soft and malleable, unlike brittle pyrite), metallic luster consistency under different lighting, and lack of 'fool's gold' crystal symmetry. Professional XRF or specific gravity testing required to determine actual gold content.
Origin & Maker
Natural Geological Origin (Common to hard-rock mining districts like California, Australia, or South Africa). Maker: Earth/Geological Processes.
Era & Period
Modern Geological Recovery (Cenozoic or older mineral deposition).
Age Estimate
Mineralization occurred millions of years ago; specimen recently extracted (Likely 21st-century recovery).
Cultural Significance
Represents the primary source of wealth for civilizations; the foundation of the gold rush era and modern bullion markets.
Condition Notes
Raw/Unprocessed. Surface shows natural weathering, fractures, and dust from extraction. Not cleaned or acid-treated. Grade: Geological Specimen.
Value Estimate
Primarily driven by 'specimen value' rather than spot price. Value depends heavily on the ratio of gold to rock weight; usually sold as a collector's mineral piece for $50-$500 depending on actual assay.
Care & Maintenance
Keep dry to prevent oxidation of associated sulfide minerals. Avoid harsh chemicals or acids which may dissolve the host rock or reactive minerals.
Similar Items
Iron Pyrite (Fool's Gold), Chalcopyrite, or Mica (brittle or flakey rather than malleable gold), and gold-filled quartz.
Interesting Facts
Most gold is recovered from ore where the gold is invisible to the naked eye; a 'specimen' with visible gold represents a high-grade discovery.