mineral

Unidentified translucent mineral fragment, possibly quartz

Likely quartz (SiO₂), though the photograph is insufficient for confident identification

AI-generated identification · may be incorrect

Pale beige to translucent, with a dull-to-glassy luster and irregular fractured surfaces; quartz has Mohs hardness 7, trigonal crystal structure, no cleavage, and specific gravity about 2.65. Apparent granular texture could also indicate feldspar, calcite, or a quartz-rich rock.

Identified September 9, 2026More mineral →

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At a glance

Common name: Unidentified translucent mineral fragment, possibly quartz
Scientific name: Likely quartz (SiO₂), though the photograph is insufficient for confident identification
Category: mineral
Identified: September 9, 2026
Method: Standard

AI Estimated Value

Typically $0–$5 for an ordinary fragment; approximately $5–$25 if it proves to be an attractive, well-formed crystal.

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

If quartz, it crystallized from silica-rich hydrothermal fluids or igneous melts, commonly ranging from Precambrian to recent in age. The fragment may be naturally weathered or broken from a vein or host rock.

Uses & applications

Quartz is used in glass, electronics, abrasives, and engineered stone; attractive crystals are collected and sometimes used in jewelry. This small, rough fragment has little commercial value.

Geological facts

A steel knife should not scratch quartz, while quartz can scratch ordinary glass. An acid test, streak test, hardness test, and closer view of crystal faces would help distinguish quartz from calcite or feldspar.

Field identification & locations

Common in quartz veins, pegmatites, granites, metamorphic rocks, and stream gravels worldwide. Identification requires testing because lighting and scale obscure diagnostic features.