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Titanite
Titanite

Howlite
Howlite



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Titanite
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Howlite

Titanite and Howlite Optical Properties

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1 Optical Properties
1.1 Luster
Subadamantine, Resinous
Vitreous
1.2 Pleochroism
Strong: X = nearly colorless; Y = yellow to green; Z = red to yellow-orange
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.885-1.9901.583-1.608
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
monoclinic
1.8 Birefringence
0.105-0.1350.019
Achroite
0 0.296
1.9 Clarity
Not Available
Gemmological Tables (2004) More from other references

Titanite and Howlite Optic Character

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

Titanite and Howlite Transparency

Similar to their colors, Titanite and Howlite 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, Titanite is Not Available while Titanite is Not Available in appearance.