×

Boulder Opal
Boulder Opal

Watermelon Tourmaline
Watermelon Tourmaline



ADD
Compare
X
Boulder Opal
X
Watermelon Tourmaline

Boulder Opal and Watermelon Tourmaline Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
Not Available
1.3 Dispersion
None0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.370-1.4701.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
Not Available0.014-0.040
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentGemdat.org

Boulder Opal and Watermelon Tourmaline Optic Character

Boulder Opal and Watermelon Tourmaline optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Boulder Opal and Watermelon Tourmaline 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 Boulder Opal and Watermelon Tourmaline 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.

Boulder Opal and Watermelon Tourmaline Transparency

Similar to their colors, Boulder Opal and Watermelon Tourmaline 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, Boulder Opal is Translucent and Transparent while Boulder Opal is Translucent and Transparent in appearance.