mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) vein cutting through host rock

AI-generated identification · may be incorrect

Hardness: 7 on the Mohs scale. Color: White to translucent for the quartz vein, grayish-brown for the host rock. Luster: Vitreous (glassy) for the quartz. Crystal structure: Trigonal (quartz). Cleavage: None (conchoidal fracture). Specific gravity: 2.65

Hardness: 7 on the Mohs scale
Luster: Vitreous (glassy) for the quartz

Identified August 3, 2026More mineral →

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Physical properties

Formation & geological history

Formed through hydrothermal processes where mineral-rich silica fluids circulated through fractures in pre-existing rocks and precipitated to fill the cracks, creating a quartz vein.

Uses & applications

Mostly collected as geological specimens, lapidary work, and industrial silica sources.

Geological facts

Vein structures like this are common indicators of past hydrothermal activity and are often associated with ore deposition, including gold and other precious metals.

Field identification & locations

Easily identified in the field by the stark contrast between the bright white or translucent quartz vein and the darker surrounding host rock. Found globally in various metamorphic and igneous terrains.