mineral

Quartz crystal with possible chlorite or mica inclusions

Quartz, SiO₂; inclusions may include chlorite (phyllosilicate) or mica

AI-generated identification · may be incorrect

Hardness 7, vitreous luster, translucent gray-brown body with green reflective inclusions, and conchoidal fracture; quartz is trigonal and lacks cleavage. The specimen appears natural and partly terminated or fractured, though its small size limits certainty.

Identified September 16, 2026More mineral →

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At a glance

Common name: Quartz crystal with possible chlorite or mica inclusions
Scientific name: Quartz, SiO₂; inclusions may include chlorite (phyllosilicate) or mica
Category: mineral
Identified: September 16, 2026
Method: Standard

AI Estimated Value

Approximately $5–$25 for a small common specimen; $30–$100+ if the inclusions, transparency, and crystal form are unusually attractive.

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 veins, cavities, and pegmatites, commonly with chlorite or mica; the exact geological age and locality cannot be determined from the image.

Uses & applications

Used for collecting, lapidary work, and occasionally jewelry; quartz is also important industrially in glass, electronics, abrasives, and engineered stone.

Geological facts

Green inclusions can create attractive chlorite-in-quartz or mica-in-quartz specimens, sometimes marketed as “garden quartz” when mossy patterns are prominent.

Field identification & locations

Identify it by its glassy luster, lack of cleavage, conchoidal fracture, and ability to scratch ordinary glass; green inclusions distinguish it from clear quartz. Common sources include Brazil, Madagascar, China, and the Alps.