metamorphic

Likely pale green jasper or serpentine-bearing stone

Uncertain; possibly serpentinized ultramafic rock (serpentinite) or green jasper, mainly serpentine-group minerals or microcrystalline quartz

AI-generated identification · may be incorrect

Light gray-green, opaque, with reddish-brown veins and a dull to waxy luster; hardness is approximately 3–6 depending on composition. Massive, fine-grained texture; no obvious cleavage or visible crystals.

Identified September 5, 2026More metamorphic →

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At a glance

Common name: Likely pale green jasper or serpentine-bearing stone
Scientific name: Uncertain; possibly serpentinized ultramafic rock (serpentinite) or green jasper, mainly serpentine-group minerals or microcrystalline quartz
Category: metamorphic
Identified: September 5, 2026
Method: Standard

AI Estimated Value

About $2–$20 as a small rough specimen; $20–$75 if attractively patterned, polished, or confirmed as quality ornamental stone.

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 serpentinite, it formed when mantle peridotite was hydrated during tectonic alteration, commonly in ophiolite zones; if jasper, silica-rich fluids cemented or replaced rock. An exact age cannot be determined from the image.

Uses & applications

Decorative carving, cabochons, and inexpensive collecting specimens; serpentinite is also used as ornamental stone, while jasper is used in beads and polished objects.

Geological facts

The reddish veins may represent iron oxides, while the green body commonly indicates serpentine minerals or chlorite. Visual identification alone cannot reliably distinguish these materials.

Field identification & locations

Look for a smooth waxy feel, green mottling, and red veining; serpentinite is softer and may scratch with a steel knife, whereas jasper generally resists scratching. Common sources include California, Italy, New Zealand, Canada, and ophiolite belts worldwide.