11 Rainbow Fluorite Octahedron Cubes on white background
Fingers holding up 1 Rainbow Fluorite Octahedron Cube with other Rainbow Fluorite Octahedron Cubes blurred in the background

Rainbow Fluorite Octahedron - Natural Fluorite Octahedron Crystal - 21-22 x 38mm

RK24B69

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Fluorite is one of the few minerals that naturally splits into an eight-sided octahedron, and this rainbow fluorite piece shows that geometry beautifully. Hold it up to the light and you will see bands of purple, green and clear inside.

It measures about 21 to 22 millimeters by 38 millimeters, a nice size for a desk, a crystal grid or a wire-wrapped pendant. We have thousands in stock, so if you prefer a particular color or size, leave a note at checkout and we will do our best to match it.

About Fluorite

Fluorite is calcium fluoride, the mineral that defines hardness 4 on the Mohs scale. It has four directions of perfect cleavage, which is why it naturally breaks into octahedrons. Many fluorite pieces glow blue-violet under UV light. Because it is soft and cleaves easily, keep it away from hard knocks.

Stone Meaning: Fluorite is traditionally associated with focus, order and clarity.

Additional Details

  • You receive 1 fluorite octahedron.
  • Approximate size: 21x38mm to 22x38mm.
  • Care: fluorite is soft (Mohs 4) and can chip along cleavage planes.
  • Stock photo. Color and size vary. Large quantities available.

Frequently Asked Questions

Why is fluorite shaped like an octahedron? Fluorite has four directions of perfect cleavage, so it naturally breaks into eight-sided shapes.

Does fluorite glow under UV light? Many pieces fluoresce blue-violet, though strength varies.

Disclaimer: Please consult a healthcare professional for any medical advice. The information provided is not intended to diagnose, treat, cure, or prevent any disease or condition.