mineral

Quartz vein in host rock (possibly milky quartz with iron-stained material)

Quartz, SiO₂, with an unidentified host rock and possible iron-oxide staining

AI-generated identification · may be incorrect

The small broken specimen appears to have white to translucent, glassy quartz surrounding a tan-brown area; the image is insufficient to identify the host rock or confirm the brown material. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and conchoidal fracture; specific gravity is about 2.65.

Identified September 23, 2026More mineral →

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At a glance

Common name: Quartz vein in host rock (possibly milky quartz with iron-stained material)
Scientific name: Quartz, SiO₂, with an unidentified host rock and possible iron-oxide staining
Category: mineral
Identified: September 23, 2026
Method: Standard

AI Estimated Value

Approximately $1–$10 for a small, common fragment; more if the specimen has unusual, well-formed crystals or a documented locality.

Not an official valuation

AI estimate for general interest only — not an appraisal. Actual value depends on condition, provenance, and market demand. Verify with a professional before buying, selling, or insuring.

This identification was generated by AI and may contain errors. Verify important details before relying on them — and never use an AI result to judge whether a specimen is safe to handle. Read the full disclaimer

Physical properties

Formation & geological history

Quartz commonly precipitates from silica-rich fluids in fractures, veins, and cavities within many rock types. The specimen’s age and exact formation environment cannot be determined from the photograph.

Uses & applications

Quartz-bearing specimens are collected and used decoratively; quartz is also important in glassmaking, electronics, and construction materials.

Geological facts

Quartz is one of Earth’s most abundant minerals and occurs in a wide range of colors and geological settings.

Field identification & locations

Look for glassy luster, hardness sufficient to scratch ordinary glass, and lack of cleavage; the visible brown zone is not diagnostic. Similar quartz-bearing fragments occur worldwide, but the image does not support a more precise locality or identification.