igneous

Likely pink feldspar-bearing pegmatite

Quartz–feldspar pegmatite, likely containing pink potassium feldspar (KAlSi₃O₈) and quartz (SiO₂)

AI-generated identification · may be incorrect

Coarse, irregular pink-red and gray-white crystals with a glassy to pearly luster; likely feldspar hardness ~6 and quartz hardness 7 Mohs. The photo does not show enough detail to confirm mineral proportions or crystal structure.

Identified September 28, 2026More igneous →

Explore Likely pink feldspar-bearing pegmatite 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: Likely pink feldspar-bearing pegmatite
Scientific name: Quartz–feldspar pegmatite, likely containing pink potassium feldspar (KAlSi₃O₈) and quartz (SiO₂)
Category: igneous
Identified: September 28, 2026
Method: Standard

AI Estimated Value

About $2–$20 for a small, common rough specimen; higher if identified rare minerals or gem-quality material are present.

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

Pegmatite forms when the final, water-rich portion of granitic magma cools slowly, producing coarse crystals; its age depends on the source intrusion and cannot be determined from the image.

Uses & applications

Pegmatite minerals are sources of feldspar, quartz, mica, and sometimes lithium or gemstones; attractive pieces are collected or used decoratively.

Geological facts

Pegmatites can contain exceptionally large crystals and economically important rare-element minerals.

Field identification & locations

Look for interlocking, coarse pink feldspar and translucent gray quartz; a hardness or fresh-surface examination would help confirm the identification. Pegmatites occur worldwide, especially in granitic regions.