Gold-Bearing Quartz Specimen with Metallic Sulfide Inclusions
Raw Gold Ore (Matrix Specimen) · Natural Ore; visible metallic brassy minerals are typical Iron Sulfides (Pyrite).
Purity: Potential trace gold content (part per million range) or localized microscopic flakes; visible metallic sections are likely Pyrite or Chalcopyrite rather than solid 24K gold.
Type
Raw Gold Ore (Matrix Specimen)
Purity
Potential trace gold content (part per million range) or localized microscopic flakes; visible metallic sections are likely Pyrite or Chalcopyrite rather than solid 24K gold.
Gold Type
Natural Ore; visible metallic brassy minerals are typical Iron Sulfides (Pyrite).
Weight
Estimated 25g to 50g based on volume and likely density of quartz matrix.
Description
A raw mineral specimen showcasing a dual-layered geological composition. The primary matrix consists of milky white quartz with crystalline structures, embedded in a dark grey host rock. Scattered throughout the quartz are brassy, metallic yellow mineralizations. While commonly mistaken for solid gold flakes, the cubic and granular structure suggests these are metallic sulfides like pyrite, which are frequent indicators of gold presence in the same geological system.
Key Features
High-contrast quartz-to-host-rock ratio; brassy metallic cluster; crystalline surface texture.
Color & Finish
Brassy, metallic yellow luster for inclusions; milky white and translucent for quartz; matte charcoal/grey for host rock.
Hallmarks & Stamps
None; natural geological specimen.
Dimensions Estimate
Approximately 40mm x 25mm x 15mm (handheld size).
Gemstones & Inlays
Natural crystalline Quartz matrix with possible microscopic disseminated gold and macroscopic metallic sulfides.
Clasp & Closure
Not applicable (natural mineral).
Chain & Links
Not applicable; rough mineral structure.
Craftsmanship Details
Natural hydrothermal deposition; no human craftsmanship present.
Authentication Indicators
Red flags for pure gold: The yellow mineral shows a brassy, greenish-grey tint rather than rich buttery yellow. The luster is metallic/lustrous rather than the deeper, ductile glow of native gold. Brittle appearance of the yellow sections suggests 'Fool\'s Gold\' (Pyrite).
Origin & Maker
Natural geological formation; commonly found in hydrothermal vein deposits (e.g., California, Australia, or Canadian Shield).
Era & Period
Geological Formation (likely Millions of years old); contemporary discovery.
Age Estimate
Geological age: Mesozoic to Cenozoic typically for gold-bearing veins; recovery date unknown.
Cultural Significance
Represents the 'Gold Rush' era of prospecting and geological exploration where identifying vein-hosted minerals was essential for survival and wealth.
Condition Notes
Unrefined and raw. Shows natural fractures consistent with extraction from a larger vein. Surfaces are dusty and unpolished.
Value Estimate
Specimen value ($5.00 - $20.00 USD) as a mineral sample. Melt value is negligible unless fire assay proves high microscopic gold concentration.
Care & Maintenance
Keep dry to prevent oxidation of iron sulfides; clean with a soft dry brush; avoid ultrasonic cleaners which may shatter the quartz or dislodge inclusions.
Similar Items
Native Gold in Quartz (visibly more yellow/orange, soft/malleable); Chalcopyrite (more colorful/iridescent); Mica (flaky/transparent yellow).
Interesting Facts
Pyrite is known as 'Fool\'s Gold' because it has deceived prospectors for centuries; however, it is often 'auriferous,' meaning it can contain microscopic gold trapped within its crystal lattice.