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Vivianite
Vivianite

Titanite
Titanite



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Vivianite
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Titanite

Vivianite and Titanite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Subadamantine, Resinous
1.2 Pleochroism
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue
Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Not Available
1.5 Refractive Index
1.560-1.6401.885-1.990
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
0.054-0.0750.105-0.135
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Vivianite and Titanite Optic Character

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

Vivianite and Titanite Transparency

Similar to their colors, Vivianite and Titanite 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, Vivianite is Transparent while Vivianite is Transparent in appearance.