Dumortierite and Rose Quartz Optical Properties

Dumortierite

Rose Quartz

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue

Weak: pink pale pinkHerve Nicolas Lazzarelli

1.3 Dispersion

NoneNone

0.007 1

1.4 Transparency

Translucent, Translucent to opaque

Transparent, Translucent, Transparent to translucent

1.5 Refractive Index

1.669-1.7231.544-1.553

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Hexagonal

1.8 Birefringence

0.011-0.0370.009

0 0.296

1.9 Clarity

Translucent

TranslucentHerve Nicolas Lazzarelli

Dumortierite and Rose Quartz Optic Character

Dumortierite and Rose Quartz optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Dumortierite and Rose Quartz 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 Dumortierite and Rose Quartz 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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Dumortierite and Rose Quartz Transparency

Similar to their colors, Dumortierite and Rose Quartz 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, Dumortierite is Translucent and Translucent to opaque while Dumortierite is Translucent and Translucent to opaque in appearance.