mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) in Altered Host Rock

Hardness: 7 on Mohs scale; Color: White to greyish-blue quartz, brown to orange iron staining; Luster: Vitreous to waxy; Texture: Crystalline within a fine-grained matrix; Cleavage: None (conchoidal fracture).

Hardness: 7 on Mohs scale
Color: White to greyish-blue quartz, brown to orange iron staining
Luster: Vitreous to waxy

Identified July 5, 2026More mineral →

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Physical properties

Formation & geological history

Formed through hydrothermal processes where mineral-rich hot water circulated through fractures in existing host rock, precipitating quartz silica. The surrounding iron staining suggests oxidation of iron-bearing minerals during weathering.

Uses & applications

Primarily of geological interest; quartz veins are often associated with precious metal deposits like gold and silver. Used as aggregate in construction when found in large quantities.

Geological facts

Quartz is the most abundant and stable mineral on Earth's surface. Visible quartz veins like this one are often targeted by prospectors because they act as 'plumbing systems' for subterranean fluids that may carry ore minerals.

Field identification & locations

Identify in the field by the distinct, hard, translucent white or bluish band cutting through softer or more opaque rock. Look for its inability to be scratched by a steel pocket knife. Found globally in mountainous and metamorphic terrains.

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