description Andalusite Overview
Andalusite is an aluminum silicate mineral with the chemical formula Al2SiO5. It forms in metamorphic rocks and is named after Andalusia in southern Spain. Gem-quality andalusite is valued for pleochroism, meaning that its apparent color changes when viewed from different directions. A related variety called chiastolite contains dark carbonaceous inclusions arranged in a cross-like pattern.
help Andalusite FAQ
How good is Andalusite?
Andalusite scores 5.98/10 (Mediocre) on Lunoo, making it rated in the Gemstone category.
What are the best alternatives to Andalusite?
See our alternatives page for Andalusite for a ranked list with scores. Top alternatives include: Indicolite Tourmaline, Zircon, Scapolite.
How does Andalusite compare to Indicolite Tourmaline?
See our detailed comparison of Andalusite vs Indicolite Tourmaline with scores, features, and an AI-powered verdict.
Is Andalusite worth it in 2026?
With a score of 5.98/10, Andalusite is a solid option in Gemstone. See all Gemstone ranked.
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