mineral

Yellow-green jasper or serpentine-rich rock

Likely microcrystalline quartz (SiO₂) with iron-bearing and/or serpentine minerals; exact identification requires testing

AI-generated identification · may be incorrect

Opaque to slightly translucent yellow-green, waxy to resinous luster, irregular fractured surfaces, and no obvious cleavage. Estimated Mohs hardness is about 5–7 if jasper, or 2.5–5.5 if serpentine; the image is somewhat blurred, so hardness and streak tests are important.

Identified August 9, 2026More mineral →

Explore Yellow-green jasper or serpentine-rich rock in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

At a glance

Common name: Yellow-green jasper or serpentine-rich rock
Scientific name: Likely microcrystalline quartz (SiO₂) with iron-bearing and/or serpentine minerals; exact identification requires testing
Category: mineral
Identified: August 9, 2026
Method: Standard

AI Estimated Value

Approximately $2–$15 for a small unidentified fragment; $10–$50 if confirmed attractive jasper or serpentine and well-polished.

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

Could be silica-rich chalcedony/jasper colored by iron, or altered ultramafic rock containing serpentine. These form through silica precipitation or hydrothermal alteration, generally from Precambrian to modern geological settings.

Uses & applications

Used as lapidary material for cabochons, carvings, beads, and tumbled stones; too small and irregular for construction use.

Geological facts

The polished-looking glossy areas and translucent edges suggest a cut or naturally fractured lapidary specimen rather than a complete raw outcrop fragment.

Field identification & locations

Check hardness with a steel knife and quartz point, streak on unglazed porcelain, and examine with a loupe for fibrous serpentine versus granular chalcedony. Similar material occurs in serpentinite belts and jasper deposits worldwide, including India, Australia, the United States, and Brazil.