×

Sanidine
Sanidine

Howlite
Howlite



ADD
Compare
X
Sanidine
X
Howlite

Sanidine and Howlite Optical Properties

Add ⊕
1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
WeakMichael O’Donoghue
NilArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.518-1.5361.583-1.608
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
0.005-0.0080.019
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Sanidine and Howlite Optic Character

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

Sanidine and Howlite Transparency

Similar to their colors, Sanidine 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, Sanidine is Transparent while Sanidine is Transparent in appearance.