Scheelite
Chemical Formula	CaWO4
Species	Molybdates & Tungstates
Crystal System	Tetragonal
Mohs Scale	4-5
Specific Gravity	5.9-6.1
Color	Colorless, white, gray, brown, pale yellow, yellow-orange, pale shades of orange, red, green; may be compositionally color zoned
Streak	White
Luster	Adamantine, Vitreous
Refractive Index	n = 1.918 - 1.921 n = 1.935 - 1.938
Diaphaneity	Transparent, Opaque
Cleavage	Distinct/GoodDistinct on , interrupted on , indistinct on .
Fracture	Irregular/Uneven, Sub-Conchoidal
Crystal Habit：Pseudo-octahedra, massive, columnar, granular
Geological Setting：Contact metamorphic tactites, high temperature hydrothermal veins and greisens, granitic pegmatites; alluvial deposits.