[ Top ] [ Japanese ]

Castellaroite

Year of discovery: 2015 (Monte Nero mine and Valletta mine, Italy), 2018 (Japan)

Locality list: A locality of castellaroite

• Mn₃(AsO₄)₂,4H₂O
• [Mn²⁺₃][(AsO₄)₂]^6-,4H₂O

• Class: Sulfide
• Soluble in: HCl

• Polymorph: Sterlinghillite (Triclinic)

• Mn => Cu: Rollandite

• AsO₄ => PO₄: Metaswitzerite

• Color: Colorless
• Streak: White
• Luster: Vitreous, Sikly
• Diaphaneity: Transparent

• Cleavage: Perfect on {001} (1 plane)
• Hardness: 3.5
• Density: 3.1

• System: Monoclinic
• Group: 2/m, P2₁/n
• Lattice: a=8.8, b=13.5, c=18.6, β=94.9

Etymology: Fabrizio Castellaro, a mineral collector who discovered this mineral.