Cordierite and Shattuckite Optical Properties

Cordierite

Shattuckite

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1 Optical Properties

1.1 Luster

Greasy, Vitreous

Silky

1.2 Pleochroism

X = pale yellow

X = very pale blue; Y = pale blue; Z = deep blue

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Not Available

Translucent

1.5 Refractive Index

Not Available1.752-1.815

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

1.8 Birefringence

Not Available0.063

0 0.296

1.9 Clarity

Not Available

Translucent

Cordierite and Shattuckite Optic Character

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

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Cordierite Vs Plumbogummite

Cordierite Vs Riebeckite

Cordierite Vs Rosasite

Cordierite and Shattuckite Transparency

Similar to their colors, Cordierite and Shattuckite 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.