mineral

Pale green rough mineral fragment, likely green fluorite

Fluorite (calcium fluoride, CaF₂) — identification is tentative from the photo

AI-generated identification · may be incorrect

A small, translucent pale-green piece with a glassy-to-dull luster. Fluorite has Mohs hardness 4, cubic crystals, and four directions of perfect cleavage; composition and cleavage cannot be confirmed visually here.

Identified October 6, 2026More mineral →

Explore Pale green rough mineral fragment, likely green fluorite in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Fluorite commonly forms in hydrothermal veins and carbonate rocks as mineral-rich fluids cool. Deposits range from ancient to geologically recent; the specimen’s age and locality are unknown.

Uses & applications

Fluorite is used as an industrial flux and a source of fluorine; attractive transparent material is cut for jewelry and collected.

Geological facts

Fluorite often fluoresces under ultraviolet light, and its cubic crystals may cleave into octahedral pieces.

Field identification & locations

Look for softness (a knife can scratch it) and distinctive octahedral cleavage; these tests are not conclusive from an image. Common sources include China, Mexico, South Africa, and the United States.