Collection: Vesuvianite

Formula: Ca₁₉Fe³⁺Al₄(Al₆Mg₂)(◻₄)◻[Si₂O₇]₄[(SiO₄)₁₀]O(OH)₉

Colour: Brown, yellow, brown-black, light green, emerald green, white, red, purple, violet, blue-green to blue

Luster: Vitreous, Resinous

Hardness: 6½

Specific Gravity: 3.32 - 3.43

Crystal System: Tetragonal