mineral
Gold-Bearing Quartz Ore
Crystalline Silicon Dioxide (SiO2) with Trace Aurum (Au)
Hardness: 7 (Mohs scale), Color: Smoky brown to tan with metallic inclusions, Luster: Vitreous to greasy, Structure: Hexagonal crystal system, Cleavage: None (conchoidal fracture).
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Physical properties
Hardness: 7 (Mohs scale), Color: Smoky brown to tan with metallic inclusions, Luster: Vitreous to greasy, Structure: Hexagonal crystal system, Cleavage: None (conchoidal fracture).
Formation & geological history
Formed via hydrothermal processes where mineral-rich hot fluids circulate through bedrock fractures, often in metamorphic or igneous belts during orogenic (mountain-building) events.
Uses & applications
Primary source of gold metal for investment, jewelry, and industrial electronics; also a popular specimen for geological collection.
Geological facts
This specimen is described as 'Hydrothermal Gold-Silver-Copper ore' in the background text. Quartz is the most common gangue mineral associated with lode gold deposits.
Field identification & locations
Identified by high hardness, translucency, and the presence of heavy sulfide or metallic inclusions. Commonly found in 'Mother Lode' regions and historic mining districts.
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Green Apatite on Albite
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mineral