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Miguelromeroite

Year of discovery: 2009 (Ojuela mine, Mexico, and Sterling mine, USA), 2009 (Japan as one of the first occurence in the World)

Locality list: A locality of miguelromeroite

• Mn₅(AsO₄)₂(HAsO₄)₂,4H₂O
• [Mn²⁺₂][Mn²⁺][Mn²⁺₂][(HAsO₄)₂|(AsO₄)₂]^10-,4H₂O

• Class: Hureaulite group
• Class: Arsenate - Hydrate

• Mn² => Ca²: Villyaellenite

• Mn => Ca: Sainfeldite

• AsO₄ => PO₄: Hureaulite

• Color: Pink, Orange
• Streak: Pale pink
• Luster: Vitreous
• Diaphaneity: Transparent

• Cleavage: Perfect on {100} (1 plane)
• Hardness: 4
• Density: 3.7

• System: Monoclinic
• Group: 2/m, C2/c
• Lattice: a=18.0, b=9.3, c=9.8, β=96.3