Fluorite

Calcium fluoride

A colourful mineral whose crystals can glow under ultraviolet light.

Morocco

Sample content • provenance shown broadly for demonstration

At a glance

Fast Facts

CaF₂

Mohs 4

Cubic

Morocco

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The Story

Fluorite commonly grows from hot, mineral-rich water in underground cracks. It can form transparent cubes or octahedrons in purple, green, yellow, blue and nearly colourless varieties.

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Where Does It Fit?

FormulaCaF₂

Crystal systemCubic

FormationGrows from hydrothermal fluids in rock fractures