2026-01-27T08:18:56.961290 image/svg+xml Matplotlib v3.10.8, https://matplotlib.org/
tetragonal

Scheelite

CaWO4

Quick Facts

Hardness
4.5-5
Specific Gravity
5.9-6.1
Refractive Index
1.918-1.937

Crystal Structure

tetragonal[4/m]:{112}@1.0 + {011}@0.7 + {001}@0.4
tetragonal
4/m
{112} {011} {001}

Physical Properties

Crystal Systemtetragonal
Hardness (Mohs)4.5-5
Specific Gravity5.9-6.1
CleavageDistinct {101}, poor {112}
FractureSubconchoidal to uneven
LustreVitreous to adamantine

Optical Properties

Refractive Index1.918-1.937
Birefringence0.016-0.017
PleochroismNone
Dispersion0.026