About Sillimanite
Aluminum silicate, a polymorph of kyanite and andalusite, often forming fibrous (Fibrolite) or prismatic crystals. It's a stone of focus, leadership, and spiritual connection, enhancing self-discipline and clarity.
Primary Hues
Colorless, White, Grey, Yellow, Brown, Green, Blue, Violet, often forms long, slender prismatic crystals or fibrous masses
Metaphysical Properties
A stone of focus, leadership, and spiritual connection. Believed to enhance self-discipline, promote clarity of thought, and aid in seeing the bigger picture. Aligns chakras.
Associated Tarot Cards
The Emperor
Type: Major Arcana
Rationale: Symbolizes focus- leadership- and structured thought- aligning with Sillimanite.
The Chariot
Type: Major Arcana
Rationale: Represents self-discipline and moving forward with confidence- resonating with this stone.
Associated Deities
Athena
Pantheon: Greek
Domain: Wisdom- Strategy- Discipline
Rationale: Athena's association with clear- strategic thought connects to Sillimanite.
Sol
Pantheon: Roman
Domain: Sun- Clarity- Leadership
Rationale: Sol's energy of confident leadership aligns with this mineral.
Metaphysical Uses
Concentration & Focus Meditation
Leadership Qualities Altar
Goal Achievement Focus
Please read our Metaphysical Disclaimer
Geological & Scientific Details
Sillimanite is classified as a nesosilicate mineral which typically crystallizes in the orthorhombic system. Its chemical formula is Al2SiO5. Common crystal habits include prismatic crystals, fibrous, acicular.
Key Geological Properties:
- Mineral Category: Nesosilicate
- Chemical Formula: Al2SiO5
- IMA Symbol: Sil[1]
- Crystal System: Orthorhombic
- Predominant Geological Color: Colourless or white to grey, also brown, yellow, yellow-green, grey-green, blue-green, blue; colourless in thin section
- Crystal Habit: Prismatic crystals, fibrous, acicular
- Cleavage: {010} perfect
- Luster: Vitreous to subadamantine, silky
- Streak: White
- Diaphaneity: Transparent to translucent
Associated Minerals
- Andalusite
- Kyanite (polymorphs)
- Garnet (Almandine)
- Cordierite
- Biotite
- Muscovite
- Quartz
- Feldspar (common in high-grade aluminous metamorphic rocks like schists and gneisses)