mineral

Chalcopyrite-bearing quartz vein rock

Quartz (SiO₂) with likely chalcopyrite (CuFeS₂) and dark host rock; exact identification is uncertain from the photo

AI-generated identification · may be incorrect

Rough, irregular specimen with pale translucent-to-greenish quartz and brassy metallic flecks. Quartz hardness 7 Mohs; chalcopyrite hardness 3.5–4, metallic luster, tetragonal crystals; the host rock is not identifiable here.

Identified October 10, 2026More mineral →

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At a glance

Common name: Chalcopyrite-bearing quartz vein rock
Scientific name: Quartz (SiO₂) with likely chalcopyrite (CuFeS₂) and dark host rock; exact identification is uncertain from the photo
Category: mineral
Identified: October 10, 2026
Method: Standard

AI Estimated Value

About $1–$15 for a small common rough specimen; more only if confirmed to contain notable collectible minerals.

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 mineral-rich hydrothermal fluids deposited quartz and sulfide minerals in fractures. The age and precise geological setting cannot be determined from appearance alone.

Uses & applications

Quartz-vein ore may be collected as a specimen; chalcopyrite is an important copper ore. This small rough piece is not suitable for construction or jewelry without further preparation.

Geological facts

Chalcopyrite is often mistaken for gold, but it is softer and commonly tarnishes to iridescent colors.

Field identification & locations

Look for brassy metallic grains within or alongside quartz; a streak test and professional mineral examination can help distinguish sulfides from other metallic minerals. Quartz veins occur in many regions worldwide.