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Yukonite

Year of discovery: 1913 (Daulton mine, Canada), 2015 (Japan)

Locality list: A locality of yukonite

• Ca₃Fe(AsO₄)₂(OH)₃,5H₂O
• [Ca²⁺₃][Fe³⁺][(OH)₃|(AsO₄)₂]^9-,5H₂O

• Class: Arsenate - Hydroxide - Hydrate

• Ca₃ => Fe³⁺₂: Ferrisymplesite

• Color: Dark brown, Reddish brown
• Streak: Brown
• Luster: Resinous
• Diaphaneity: Translucent-Opaque

• Cleavage: No
• Hardness: 2-3
• Density: 2.7

• System: Orthorhombic
• Group: mm2