The Science Museum of Minnesota
Cat's Eye Heart
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$5.99 USD
Normaler Preis
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$5.99 USD
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This heart-shaped specimen features a cat’s eye effect, known as chatoyancy, which creates a luminous line of light that appears to move across the surface as it is turned. Cat’s eye stones are typically composed of chrysoberyl or other fibrous minerals, and the effect is caused by parallel inclusions or fibrous structures within the stone.
Details:
- Material: Natural cat’s eye gemstone
- Shape: Polished heart
- Appearance: Smooth, polished surface with a moving, reflective band of light
- Formation: Develops in metamorphic rocks where fibrous mineral inclusions align, creating the cat’s eye effect
- Physical Properties: Mohs hardness 8–8.5 (chrysoberyl); vitreous to silky luster
- Educational Value: Demonstrates optical phenomena in minerals and the role of internal structures in light reflection
A cat’s eye heart showcases both the natural optical properties of minerals and a visually appealing, symbolic shape.

