Native Crystalline Gold in Quartz Matrix
Raw Gold Ore (Specimen) · Natural Native Yellow Gold
Purity: Typically 85-95% (20K-23K)
Type
Raw Gold Ore (Specimen)
Purity
Typically 85-95% (20K-23K)
Gold Type
Natural Native Yellow Gold
Weight
Indeterminate; total specimen weight includes significant rock matrix
Description
This is a raw gold ore specimen featuring visible native gold embedded within a crystalline quartz matrix. The gold manifests as irregular masses and small crystalline structures, showing the classic 'butter-yellow' color that differentiates it from pyrite. This is a primary deposit specimen, meaning the gold remains attached to the rock in which it formed rather than being weathered into a river as a nugget.
Key Features
High-contrast white quartz vs. yellow gold; irregular, non-geometric gold shapes; lack of internal cleavage in the metal
Color & Finish
Rich buttery yellow with a natural metallic luster and uneven, jagged surface texture
Hallmarks & Stamps
None; as a natural raw specimen, it lacks man-made serials or stamps
Dimensions Estimate
Macro view suggests a specimen approximately 2cm to 5cm in width
Gemstones & Inlays
None; however, the white/grey mineral is milky quartz (SiO2)
Clasp & Closure
Not applicable; raw mineral specimen
Chain & Links
Not applicable; raw mineral specimen
Craftsmanship Details
Natural geological crystallization; no man-made finishing visible.
Authentication Indicators
The color is consistent with high-purity gold; unlike 'Fool's Gold' (Pyrite), native gold is malleable and does not have a cubic crystal habit. The quartz association is a primary diagnostic indicator for genuine gold deposits.
Origin & Maker
Natural geological formation; Mother Nature
Era & Period
Geological time; Holocene or earlier
Age Estimate
Millions of years old, typically formed via hydrothermal activity
Cultural Significance
Gold specimens like this sparked the historic 'Gold Rushes' of the 19th century in California, Australia, and the Klondike.
Condition Notes
Fair to Good; the specimen appears uncleaned with some iron oxidation/staining on the host rock
Value Estimate
Value is based on gold weight plus a 'specimen premium' (collector value), which can be 1.5x to 3x the spot price of gold.
Care & Maintenance
Clean only with ultrasonic cleaner if quartz is solid; otherwise, use light dusting. Avoid acids that might dissolve the host matrix if carbonates are present.
Similar Items
Iron Pyrite (brittle, cubic CRYSTALS), Chalcopyrite (more brassy/greenish), Mica (flaky/transparent)
Interesting Facts
Gold and quartz are frequently found together because gold is transported by hot, mineral-rich water (hydrothermal fluids) that also carries silica, which crystallizes into quartz.