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Modraite

Year of discovery: 2025 (Dolinkovský hill, Slovakia)

Locality list:

• Ca₁₉Al₁₀Fe₃Si₁₈O₆₈(OH)₁₀
• [Ca²⁺₁₉][Fe²⁺][Al³⁺₄][(Al³⁺₆Fe²⁺₂][]₄[][OH|(OH)₉|(SiO₄)₁₀|(Si₂O₇)₄]^74-

• Class: Vesuvianite group
• Class: Sorosilicate - Nesosilicate - Hydroxide

• Fe => Mg: Magnesiovesuvianite

• [Fe][Fe] => [Cu][Mg]: Cyprine

• Color: Brown
• Streak: White
• Luster: Vitreous
• Diaphaneity: Transparent-Translucent

• Habit: Tetra prismatic, Acicular, Pyramidal
• Aggregate: Columnar, Radial

• System: Tetragonal
• Group: 4/mmm, P4/nnc
• Lattice: a=15.6, c=11.8