Garnet and Augite Optical Properties

Garnet

Augite

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous, Adamantine, Vitreous, Adamantine

Vitreous, Resinous

1.2 Pleochroism

None

Pale green

1.3 Dispersion

0.02NA

0.007 1

1.4 Transparency

Transparent, Transparent to translucent

Transparent, Translucent

1.5 Refractive Index

1.730-1.8951.671-1.774

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Transparent

Garnet and Augite Optic Character

Garnet and Augite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Garnet and Augite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Garnet and Augite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Compare Semi Precious Gemstones

Garnet Vs Opal

Garnet Vs Tourmaline

Garnet Vs Tanzanite

Garnet and Augite Transparency

Similar to their colors, Garnet and Augite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Garnet is Transparent and Transparent to translucent while Garnet is Transparent and Transparent to translucent in appearance.