In-situ Auriferous Quartz Vein Outcrop
Raw Gold (Lode/Quartz Vein) · Native Yellow Gold (naturally occurring elemental alloy with silver/electrum)
Purity: High-purity native gold (typically 80% to 95% or 19K - 23K fineness)
Type
Raw Gold (Lode/Quartz Vein)
Purity
High-purity native gold (typically 80% to 95% or 19K - 23K fineness)
Gold Type
Native Yellow Gold (naturally occurring elemental alloy with silver/electrum)
Weight
Indeterminate; total bulk weight of rock is several kilograms, gold content unknown
Description
A classic lode gold deposit featuring an exposed quartz vein protruding from the earth. The specimen shows significant iron staining (gossan) and hydrothermal quartz crystals, which are typical host environments for precious metals. The structural 'shattered' appearance indicates potential for high-grade pocket mineralization.
Key Features
Hydrothermal quartz matrix, limonite/hematite staining, vuggy crystal structures, and proximity to metamorphic host rock
Color & Finish
Naturally weathered, dull to bright yellow metallic luster against milky white and iron-stained quartz
Hallmarks & Stamps
None; natural specimen. Geological indicators like iron oxidation and quartz vugs
Dimensions Estimate
Outcrop span approximately 40cm x 30cm; hammer for scale suggests substantial depth
Gemstones & Inlays
Natural crystalline quartz matrix with possible iron pyrite and limonite associations
Clasp & Closure
None (Geological formation)
Chain & Links
N/A (Crystalline matrix bonding)
Craftsmanship Details
Natural hydrothermal deposition; crystalline growth patterns and mineral cleavage visible
Authentication Indicators
Sectile (if gold is visible and malleable), high specific gravity in concentrated areas, non-magnetic, lack of cubic cleavage (distinguishes from pyrite)
Origin & Maker
Natural earth-formed geological deposit; specific locality indeterminate from image
Era & Period
Geological time (likely Millions of years old); identified in contemporary prospecting
Age Estimate
Primary mineralization likely Cenozoic or older; current exposure is recent
Cultural Significance
Represents the 'Mother Lode' archetype that fueled California, Australian, and Klondike gold rushes
Condition Notes
Fair (In-situ raw state). Heavily weathered by environmental exposure with visible fracturing from tectonic stress or erosion
Value Estimate
Highly speculative; primarily dependent on Fire Assay results for Ounces per Ton (OPT) calculation
Care & Maintenance
Preserve as found; if extracted, use ultrasonic cleaning or a light acid bath (HCl) to remove iron staining from the quartz
Similar Items
Chalcopyrite (brassy/brittle), Iron Pyrite (cubic/brittle), Mica (flaky/non-metallic)
Interesting Facts
Over 90% of the world's gold has been mined from quartz veins similar to this structure throughout history