mineral

Quartz-rich veined rock, likely milky quartz with feldspar or calcite

Quartz (SiO₂), possibly in a quartz–feldspar or quartz–calcite vein

AI-generated identification · may be incorrect

White to translucent gray, vitreous to pearly luster, irregular fracture, and no obvious cleavage; quartz hardness is Mohs 7, while associated feldspar is about 6 or calcite 3. The granular, interlocking texture suggests a vein or altered rock rather than a single crystal.

Identified August 23, 2026More mineral →

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At a glance

Common name: Quartz-rich veined rock, likely milky quartz with feldspar or calcite
Scientific name: Quartz (SiO₂), possibly in a quartz–feldspar or quartz–calcite vein
Category: mineral
Identified: August 23, 2026
Method: Standard

AI Estimated Value

Typically $2–$15 for a small common fragment; approximately $20–$75 if unusually clear, aesthetic, or locality-labeled.

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

Likely formed when silica-rich hydrothermal fluids filled fractures and crystallized, commonly during cooling of igneous bodies or metamorphism. Exact geological age and locality cannot be determined from the photograph.

Uses & applications

Quartz veins are used as silica feedstock, aggregate, and decorative stone; attractive pieces may be collected or cut as ornamental material, though this specimen appears modestly gem-grade.

Geological facts

Translucent quartz commonly shows cloudy inclusions, staining, and internal fractures. A glass-scratch test can support quartz identification, but should be performed only on an inconspicuous area.

Field identification & locations

Common in mountain belts, granitic terrains, and hydrothermal districts worldwide. Confirm with hardness, streak (white), and acid testing: calcite fizzes in dilute hydrochloric acid, whereas quartz does not.