mineral

Polished citrine quartz point

Quartz, silicon dioxide (SiO₂), yellow-orange variety commonly sold as citrine; possibly heat-treated amethyst

AI-generated identification · may be incorrect

Mohs hardness 7; translucent honey-brown to orange color, vitreous luster, trigonal crystal structure, and indistinct cleavage with conchoidal fracture. The pointed, polished form obscures natural crystal faces; internal clouding suggests included or fractured quartz.

Identified August 8, 2026More mineral →

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At a glance

Common name: Polished citrine quartz point
Scientific name: Quartz, silicon dioxide (SiO₂), yellow-orange variety commonly sold as citrine; possibly heat-treated amethyst
Category: mineral
Identified: August 8, 2026
Method: Standard

AI Estimated Value

Approximately $20-$100 for a common polished point of this size; $100-$300+ for unusually clear, naturally colored, well-provenanced material.

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 crystallizes from silica-rich hydrothermal fluids in cavities of igneous rocks and pegmatites, generally during late-stage cooling of the host rock. Natural citrine is uncommon; much commercial citrine is heat-treated amethyst from Brazil, formed over millions of years.

Uses & applications

Used as a decorative display crystal, lapidary ornament, and occasional gemstone; quartz is also important in glass, electronics, abrasives, and construction aggregate.

Geological facts

Citrine’s yellow color commonly results from iron-related defects in quartz. The pictured object is a shaped or polished specimen rather than an intact natural crystal.

Field identification & locations

Identify by its glassy luster, hardness, quartz-like translucency, and lack of cleavage; citrine is commonly found in Brazil, Madagascar, Spain, Uruguay, and Zambia. A gemological test or locality information is needed to distinguish natural from heat-treated material.