mineral

Green-and-white feldspar-bearing stone, possibly amazonite

Likely microcline feldspar (KAlSi₃O₈), with pale quartz or feldspar; identification is uncertain from the photo

AI-generated identification · may be incorrect

Small, opaque, mottled green and cream specimen with a dull to slightly vitreous luster. Feldspar has Mohs hardness about 6, a monoclinic or triclinic crystal structure, and two cleavages near 90°.

Identified October 13, 2026More mineral →

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At a glance

Common name: Green-and-white feldspar-bearing stone, possibly amazonite
Scientific name: Likely microcline feldspar (KAlSi₃O₈), with pale quartz or feldspar; identification is uncertain from the photo
Category: mineral
Identified: October 13, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a small, common, unpolished piece; higher-quality polished specimens may sell for more.

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

Small, opaque, mottled green and cream specimen with a dull to slightly vitreous luster. Feldspar has Mohs hardness about 6, a monoclinic or triclinic crystal structure, and two cleavages near 90°.

Formation & geological history

If amazonite, it formed as potassium feldspar crystallized in a slowly cooling, silica-rich igneous body, commonly a granite pegmatite. Such deposits span a broad range of geological ages.

Uses & applications

Amazonite is used for beads, cabochons, and decorative objects; ordinary feldspar-rich material has limited specimen or industrial value at this size.

Geological facts

Amazonite is the green variety of microcline; its color is associated with trace elements and structural defects rather than copper, despite a common misconception.

Field identification & locations

Look for green color, feldspar-like blocky cleavage, and hardness near 6; the photo alone cannot distinguish amazonite from other green rocks or altered feldspar. Amazonite occurs in pegmatites in places including Colorado, Madagascar, and Russia.