mineral

Yellow tumbled mineral, likely citrine or yellow quartz

Quartz (SiO₂), possibly iron-colored citrine; exact identification requires testing

AI-generated identification · may be incorrect

Pale yellow, translucent, vitreous luster, likely conchoidal fracture and no visible cleavage; Mohs hardness 7, specific gravity about 2.65. The rounded shape indicates tumbling or natural abrasion.

Identified August 30, 2026More mineral →

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At a glance

Common name: Yellow tumbled mineral, likely citrine or yellow quartz
Scientific name: Quartz (SiO₂), possibly iron-colored citrine; exact identification requires testing
Category: mineral
Identified: August 30, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a small common tumbled stone; $20–$100+ if confirmed natural citrine with strong color and transparency.

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

Pale yellow, translucent, vitreous luster, likely conchoidal fracture and no visible cleavage; Mohs hardness 7, specific gravity about 2.65. The rounded shape indicates tumbling or natural abrasion.

Formation & geological history

Quartz forms in igneous, hydrothermal, and metamorphic environments; yellow coloration commonly results from iron impurities or heat treatment of amethyst. Quartz is widespread from Precambrian to modern deposits.

Uses & applications

Used as a gemstone, ornamental tumbled stone, and collector specimen; quartz also has major industrial uses in glass, ceramics, electronics, and abrasives.

Geological facts

Natural citrine is relatively uncommon; much commercial “citrine” is heat-treated amethyst. The image alone cannot distinguish citrine from yellow jasper, calcite, or dyed material.

Field identification & locations

Check whether it scratches glass (quartz usually does), examine translucency and fracture, and test streak, cleavage, and specific gravity; avoid destructive tests if valuable. Common sources include Brazil, Uruguay, Madagascar, Spain, and the United States.