Cordierite and Narsarsukite Optical Properties

Cordierite

Narsarsukite

Add ⊕

1 Optical Properties

1.1 Luster

Greasy, Vitreous

Vitreous, Pearly

1.2 Pleochroism

X = pale yellow

Weak; O = colorless to yellow; E = colorless to honey-yellow

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

Transparent, Translucent

1.5 Refractive Index

Not Available1.610-1.647

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

tetragonal

1.8 Birefringence

Not Available0.021

0 0.296

1.9 Clarity

Not Available

Transparent

Cordierite and Narsarsukite Optic Character

Cordierite and Narsarsukite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Cordierite and Narsarsukite 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 Cordierite and Narsarsukite 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 Blue Gemstones

Cordierite Vs Rosasite

Cordierite Vs Riebeckite

Cordierite Vs Plumbogummite

Cordierite and Narsarsukite Transparency

Similar to their colors, Cordierite and Narsarsukite 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, Cordierite is Not Available while Cordierite is Not Available in appearance.