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Metaschoepite

Year of discovery: 1960 (Shinkolobwe mine (Kasolo mine), Congo (Zaïre)), 1961 (Japan)

Locality list: 2 localities of metaschoepite

• UO₃,1-2H₂O
• [U⁵⁺][O₃],1-2H₂O

• Class: Oxide
• Radioactive: Very strong
• Dehydrate to Paulscherrerite.
• Formed on dehydration of Schoepite.

• O₃ => O₄: Metastudtite

• 1-2H₂O => 2H₂O: Paraschoepite

• Color: Yellow
• Streak: Pale yellow
• Luster: Vitreous
• Diaphaneity: Translucent

• Cleavage: Perfect on {001} (1 plane), Distinct on {010} (1 plane)
• Hardness: 2.5
• Density: 4.7

• System: Orthorhombic
• Group: mmm, Pbna
• Lattice: a=14.0, b=16.7, c=14.7