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One of a Kind 43.45ct Maxixe VERY RARE Species: Beryl (Maxixe variety) Chemical Formula: Be₃Al₂Si₆O₁₈ Crystal System: Hexagonal Weight: 43.45 Carats (exceptionally large specimen) Color: Deep indigo-blue to inky blue (Maxixe-type coloration) Transparency: Transparent Luster: Vitreous Optical Properties: Refractive Index: ~1.57 – 1.59 Birefringence: Low (~0.005 – 0.009) Pleochroism: Weak to moderate (blue ↔ slightly greenish/grayish blue) Physical Properties: Hardness: 7.5 – 8 Specific Gravity: ~2.7 Origin: Primarily associated with Brazil, where Maxixe-type beryl was first identified