cubic simulant diamond simulant
LuAG (Lutetium Aluminium Garnet) (Faceted)
Lu3Al5O12
Quick Facts
Hardness
8.5
Specific Gravity
6.73
Refractive Index
1.84
Optical Character
Isotropic
Crystal Structure
#! Species: LuAG (Lutetium Aluminium Garnet)
#! System: Cubic (m3m)
#! Habit: Garnet-type dodecahedron with trapezohedron
cubic[m3m]:{110}@1.0 + {211}@0.7
cubic
m3m
{110} {211}
Physical Properties
Crystal Systemcubic
Hardness (Mohs)8.5
Specific Gravity6.73
CleavageNone
FractureConchoidal
LustreVitreous to sub-adamantine
Optical Properties
Refractive Index1.84
Optical CharacterIsotropic
Dispersion0.028
FluorescenceWeak
Origin & Identification
Originsimulant
Growth Methodczochralski
First Produced2000
Diagnostic FeaturesHigher RI than YAG (1.84 vs 1.833), higher hardness than most simulants (8.5), singly refractive, thermal probe reads non-diamond, rare in trade, primarily a collector/research material
Colours
Colourless
Common Inclusions
Gas bubbles
Interactive Preview
Open this crystal in the CDL Playground to rotate, export, and explore in 3D.
Open in Playground #! Species: LuAG (Lutetium Aluminium Garnet)
#! System: Cubic (m3m)
#! Habit: Garnet-type dodecahedron with trapezohedron
cubic[m3m]:{110}@1.0 + {211}@0.7
Natural Counterpart
The natural gem this simulant imitates
Related Minerals
Other minerals in the cubic system
