mineral

Raw pale-golden mineral aggregate, likely iron-stained quartz or calcite

Uncertain from photograph; possible quartz (SiO₂) or calcite (CaCO₃) with limonite staining

AI-generated identification · may be incorrect

Irregular, granular to crystalline texture with a pale yellow-gold color and dull to vitreous luster. Quartz has Mohs hardness 7 and no cleavage; calcite has hardness 3, prominent rhombohedral cleavage, and fizzes in dilute hydrochloric acid.

Identified September 8, 2026More mineral →

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At a glance

Common name: Raw pale-golden mineral aggregate, likely iron-stained quartz or calcite
Scientific name: Uncertain from photograph; possible quartz (SiO₂) or calcite (CaCO₃) with limonite staining
Category: mineral
Identified: September 8, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a small common unidentified specimen; potentially $10–$30 if confirmed as an attractive, well-crystallized mineral.

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 as a hydrothermal or cavity-filling vein/aggregate, with iron-oxide staining producing the yellow coloration; age depends on its host deposit. A photograph alone cannot establish exact mineral identity or geological age.

Uses & applications

Small specimens are mainly valued for collecting and educational use; quartz may be used industrially, while calcite is important in cement, lime, and mineral fillers. This piece is not gem-quality based on its appearance.

Geological facts

The color may come from limonite/goethite coatings rather than the primary mineral. A streak test, hardness test, acid test, and specific-gravity measurement would distinguish the leading possibilities.

Field identification & locations

Commonly encountered in quartz or carbonate veins, geodes, and altered host rocks worldwide. Test an inconspicuous edge: glass-scratching suggests quartz; vigorous cold-acid effervescence indicates calcite.