Crystals & Stones

Chiastolite specimen; public-domain photo by Géry Parent — Roosters Peacock crystal guide
Chiastolite: The Stone of Protection, Transition & Centered Strength
Chiastolite is a cross-patterned variety of Andalusite, Al2SiO5, formed when carbon-rich inclusions become arranged into a natural cross within growing crystals. Explore its mineral science, historic 'cross stone' tradition, modern... Read more...
Andalusite mineral specimen — Roosters Peacock crystal guide
Andalusite: The Stone of Perspective, Grounding & Inner Direction
Explore Andalusite, the orthorhombic aluminum silicate polymorph known for strong pleochroism and its chiastolite variety. Learn its mineral science, metamorphic significance, name history, modern metaphysical traditions, care, and uses. Read more...