Aluminum silicate, rare naturally but common in industrial high-temperature ceramics (e.g., porcelain). It's associated with strength, resilience, and perseverance.
Colorless, White, Pink, Yellow, Red, Violet, Blue (rarely), often found in porcelain and metamorphic rocks
Mullite is classified as a nesosilicate mineral which typically crystallizes in the orthorhombic system. Its chemical formula is Al6Si2O13. Common crystal habits include prismatic to acicular crystals.