×

Gedrite
Gedrite

Howlite
Howlite



ADD
Compare
X
Gedrite
X
Howlite

Gedrite and Howlite Optical Properties

Add ⊕
1 Optical Properties
1.1 Luster
Fibrous, Vitreous
Vitreous
1.2 Pleochroism
Weak to moderate
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
1.625-1.7181.583-1.608
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
monoclinic
1.8 Birefringence
Not Available0.019
Achroite
0 0.296
1.9 Clarity
Transparent
Gemmological Tables (2004) More from other references

Gedrite and Howlite Optic Character

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

Gedrite and Howlite Transparency

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