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Nordenskiöldine, Nordenskioldine

Year of discovery: 1887 (Arøya, Norway), 2012 (Japan)

Locality list: A locality of nordenskiöldine

• CaSnB₂O₆
• [Ca²⁺][Sn⁴⁺][(BO₃)₂]^6-

• Class: Neso-Borate
• Soluble in: HCl (Decompose)
• Alter to Cassiterite.

• Ca => Mn: Tusionite

• Sn => Ca₂: Takedaite

• Color: Colorless, Yellow
• Luster: Vitreous
• Diaphaneity: Transparent

• Cleavage: Perfect on {0001} (1 plane), Indistinct on {10(-1)1} (3 planes)
• Hardness: 5.5-6
• Density: 4.2

• System: Trigonal
• Group: (-3), P(-3)
• Lattice: a=4.9, c=16.1