mineral

Raw quartz-bearing rock, possibly iron-stained quartz or pegmatitic quartz

Quartz (SiO₂), likely with iron-oxide staining and associated feldspar or mica

AI-generated identification · may be incorrect

Hardness about 7 Mohs; pale tan to honey-brown, translucent in places, with a vitreous to dull luster and irregular granular crystals. The specimen appears massive or fractured rather than showing clear crystal faces; exact identification is limited by the photograph.

Identified September 22, 2026More mineral →

Explore Raw quartz-bearing rock, possibly iron-stained quartz or pegmatitic quartz 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: Raw quartz-bearing rock, possibly iron-stained quartz or pegmatitic quartz
Scientific name: Quartz (SiO₂), likely with iron-oxide staining and associated feldspar or mica
Category: mineral
Identified: September 22, 2026
Method: Standard

AI Estimated Value

About $1–$10 for a common small fragment; roughly $10–$50 if confirmed from a notable locality or displaying unusually attractive crystals.

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

Likely formed in a hydrothermal vein or granitic pegmatite, where silica-rich fluids crystallized quartz and later weathering produced the brown iron staining. Its geological age cannot be determined visually and depends on the host locality.

Uses & applications

Quartz is used in glass, ceramics, abrasives, electronics, and jewelry; attractive pieces are collected as mineral specimens. This small, rough fragment has little commercial value unless locality or crystal quality is exceptional.

Geological facts

Quartz is one of Earth’s most abundant minerals and has strong conchoidal fracture. Brown coloration commonly comes from limonite or other iron oxides coating fractures and surfaces.

Field identification & locations

Look for glassy luster, very high hardness, lack of cleavage, and the inability to scratch it with a steel knife; quartz should scratch ordinary glass. Common sources include hydrothermal veins, pegmatites, and weathered granitic terrains worldwide.