metamorphic

Chrysoprase-bearing serpentine (probable)

Serpentine-group minerals, mainly lizardite/antigorite, with possible nickel-bearing chrysoprase or green garnierite

AI-generated identification · may be incorrect

Hardness typically 2.5–4 (serpentine; chrysoprase ~6.5–7); mottled blue-green to yellow-green, waxy to vitreous luster, massive texture, and no obvious cleavage. The rounded translucent green areas may be chalcedony or nickel-rich alteration, but a photo cannot confirm composition.

Identified September 12, 2026More metamorphic →

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At a glance

Common name: Chrysoprase-bearing serpentine (probable)
Scientific name: Serpentine-group minerals, mainly lizardite/antigorite, with possible nickel-bearing chrysoprase or green garnierite
Category: metamorphic
Identified: September 12, 2026
Method: Standard

AI Estimated Value

About $5–$30 for ordinary rough; $30–$150+ for attractive, confirmed chrysoprase-bearing or locality-labeled specimens.

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

Usually forms when magnesium-rich ultramafic rocks undergo hydrothermal alteration (serpentinization), commonly with nickel-bearing fluids; associated rocks are generally Paleozoic to Mesozoic or older, depending on locality.

Uses & applications

Serpentine is used decoratively, for carvings and ornamental stone; chrysoprase-quality material may be cut as a gemstone. Most rough pieces are collector specimens rather than construction material.

Geological facts

Green coloration can result from chromium, nickel, or iron; blue-green and yellow zoning is characteristic of complex alteration. Some similar-looking material is marketed as nephrite, jade, or “New Jade,” though it may be serpentine.

Field identification & locations

Look for low hardness, waxy feel, greasy-looking fracture, and association with dark ultramafic rock; avoid relying on color alone. Common sources include California, Oregon, New Zealand, Italy, Russia, and Australia.