Native Gold-Bearing Quartz Specimen (Possible Chalcopyrite/Pyrite Inclusion)
Raw Gold Ore (Nugget/Flake in Host Matrix) · Yellow Gold (Natural Native Alloy with Silver/Copper)
Purity: High-purity Native Gold (typically 80-95% or 19K-23K)
Type
Raw Gold Ore (Nugget/Flake in Host Matrix)
Purity
High-purity Native Gold (typically 80-95% or 19K-23K)
Gold Type
Yellow Gold (Natural Native Alloy with Silver/Copper)
Weight
25-45 grams (Total specimen weight; gold content negligible/speculative)
Description
A raw geological specimen featuring milky quartz matrix with metallic inclusions. The specimen displays characteristic iron-staining (limonite) and a distinct green oxidation layer, which suggests the presence of copper-bearing minerals like chalcopyrite or malachite alongside potential native gold flakes. The gold appears as fine, disseminated specks within the crystalline structure of the host rock.
Key Features
Milky quartz matrix, metallic speckling, and green copper-carbonate oxidation (secondary mineralization).
Color & Finish
Pale brassy yellow metallic luster with green verdigris/oxidized patina
Hallmarks & Stamps
None (Natural geological specimen)
Dimensions Estimate
45mm x 20mm x 15mm (Hand-sized cabinet specimen)
Gemstones & Inlays
Crystalline Milky Quartz and Iron Oxide staining
Clasp & Closure
Not applicable (Natural rock specimen)
Chain & Links
Not applicable (Raw mineral)
Craftsmanship Details
None (Natural formation; raw geological cleavage and fracture).
Authentication Indicators
Sectility (if gold), metallic luster, mineral association with quartz; Warning: possible Pyrite/Chalcopyrite (Fool's Gold) indicated by greenish tarnish.
Origin & Maker
Natural geological origin (Likely hard-rock mining source)
Era & Period
Contemporary Geological Find
Age Estimate
Formation age: Millions of years; Extraction: Recent (21st Century)
Cultural Significance
Represents the primary source of wealth and the target of historical gold rushes (e.g., California 1849).
Condition Notes
Raw/Unfinished. Natural fractured surfaces. Significant oxidation and 'rusting' from iron content.
Value Estimate
Specimen Value: $10 - $50 (Collectability depends on confirmed gold weight vs. common sulfides).
Care & Maintenance
Keep dry to prevent further oxidation; clean only with distilled water and soft brush; do not use chemicals.
Similar Items
Pyrite in Quartz (brittler, brassier), Chalcopyrite (more colorful tarnish), Arsenopyrite.
Interesting Facts
Gold is often found in quartz 'mother lodes' due to hydrothermal fluid deposition in Earth's crust.