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Hydrokenoelsmoreite

Year of discovery: 1911 (as Ferritungstite), 2010 (Elsmore mine, Australia, Kramat Pulai mine, Malaysia, and Germania mine (Roselle mine), USA), 1994 (Japan)

Locality list: 5 localities of hydrokenoelsmoreite

• W₂O₆,H₂O
• (W,Fe,Al)₂(O,OH)₆,n(H₂O,K,Na,Ca)
• [W⁶⁺₂][O₆]^12-,H₂O

• Class: Elsmoreite group < Pyrochlore supergroup
• Class: Oxide - Hydroxide - Hydrate
• Variety: Ferritungstite (+Fe)
• Variety: Alumotungstite (+Al)
• Soluble in: HCl (Decompose), HNO₃ (Decompose), H₂SO₄ (Decompose)
• Radioactive: Very weak

• H₂O => 2H₂O: Tungstite
• H₂O => 4H₂O: Meymacite, Hydrotungstite

• Color: White, Pale yellow, Duller than Tungstite and Hydrotungstite. Pale brown (Fe-bearing)
• Streak: White
• Luster: Adamantine

• Cleavage: No
• Hardness: 3

• System: Cubic (3C), Trigonal (6R)
• Group: m3m, Fd3m, (-3), R(-3)
• Lattice (3C): a=10.3
• Lattice (6R): a=7.3, c=35.7