×

Howlite
Howlite

Bowenite
Bowenite



ADD
Compare
X
Howlite
X
Bowenite

Howlite and Bowenite Optical Properties

Add ⊕
1 Optical Properties
1.1 Luster
Vitreous
Waxy, Silky, Resinous, Greasy
1.2 Pleochroism
NilArthur Thomas
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
TranslucentHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010)
1.5 Refractive Index
1.583-1.6081.530-1.575
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.019Not Available
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
TranslucentHerve Nicolas Lazzarelli

Howlite and Bowenite Optic Character

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

Howlite and Bowenite Transparency

Similar to their colors, Howlite and Bowenite 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, Howlite is Gemmological Tables (2004) More from other references while Howlite is Gemmological Tables (2004) More from other references in appearance.