mineral

Raw fluorite-bearing rock, possibly fluorite in quartz/calcite matrix

Fluorite (CaF₂), with likely quartz (SiO₂) and/or calcite (CaCO₃) gangue

AI-generated identification · may be incorrect

Pale purple translucent patches occur in a white to gray, coarse matrix; fluorite has glassy luster, cubic crystals/cleavage, Mohs hardness 4, and specific gravity about 3.18. The matrix may be quartz (hardness 7) or calcite (hardness 3).

Identified August 17, 2026More mineral →

Explore Raw fluorite-bearing rock, possibly fluorite in quartz/calcite matrix 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 fluorite-bearing rock, possibly fluorite in quartz/calcite matrix
Scientific name: Fluorite (CaF₂), with likely quartz (SiO₂) and/or calcite (CaCO₃) gangue
Category: mineral
Identified: August 17, 2026
Method: Standard

AI Estimated Value

Approximately $3–$20 for a small ordinary rough specimen; $25–$150+ if crystals are well formed, strongly colored, and display good transparency.

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 hydrothermal veins where fluorine-rich fluids deposited fluorite with quartz or calcite, commonly during relatively young to ancient intrusive-volcanic activity; exact age cannot be determined visually.

Uses & applications

Fluorite is an important source of fluorine for hydrofluoric acid and other chemicals, and is used as a flux in steelmaking and ceramics; attractive purple specimens are collected and occasionally cut as ornamental material.

Geological facts

Purple coloration commonly results from trace-element centers or radiation-related defects. Fluorite’s cubic cleavage and relatively low hardness distinguish it from similarly colored quartz.

Field identification & locations

Common localities include China, Mexico, the United States, England, and Morocco. Test cautiously: fluorite may scratch with a steel tool, while quartz will not; dilute acid fizzes on calcite but not fluorite or quartz.