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Scheelite [abbr. Sch ]

Year of discovery: 1821 (Bispbergs Klack, Sweden), 1879 (Japan)

Locality list: 263 localities of scheelite

• CaWO₄
• [Ca²⁺][WO₄]^2-

• Class: Scheelite group
• Class: Tungstate
• Soluble in: HCl (Decompose), HNO₃ (Decompose)
• Fluorescence: Short UV excitation (Bluish white, Yellow by Mo), Thermoluminescence
• Alter to Tungstite, Hydrotungstite or Cuprotungstite.
• Substitution pseudomorph: Replace Wolframite.
• Substitution pseudomorph: Replaced by Ferberite. (Reinite)
• Substitution pseudomorph: Replaced by Wolframite, Anthoinite, Mpororoite, and Cuprotungstite.
• Incrustation pseudomorph: Replaced by Quartz, Kaolinite, or Bismutite.

• Ca => Fe: Ferberite
• Ca => Mn: Hübnerite (Hubnerite)
• Ca => Zn: Sanmartinite
• Ca => Pb: Stolzite, Raspite
• Ca => (BiO)₂: Russellite

• WO₄ => MoO₄: Powellite (Series)

• Color: Pale brown, Yellow, White
• Streak: White
• Luster: Adamantine
• Diaphaneity: Transparent-Opaque

• Habit: Octahedral

• Cleavage: Distinct on {101} (2 planes), Indistinct on {001} (1 plane)
• Hardness: 4.5-5
• Density: 6.1

• System: Tetragonal
• Group: 4/m, I4₁/a
• Lattice: a=5.2, c=11.4

Etymology: Karl Wilhelm Scheele (1742-1786), Swedish chemist