Gedrite and Boulder Opal Optical Properties

Gedrite

Boulder Opal

Add ⊕

1 Optical Properties

1.1 Luster

Fibrous, Vitreous

Not Available

1.2 Pleochroism

Weak to moderate

AbsentWalter Schumann

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Transparent

Transparent, Translucent

1.5 Refractive Index

1.625-1.7181.370-1.470

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Not Available

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Transparent

Gedrite and Boulder Opal Optic Character

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

Compare Brown Gemstones

Gedrite Vs Hibonite

Gedrite Vs Jacobsite

Gedrite Vs Hessonite

Gedrite and Boulder Opal Transparency

Similar to their colors, Gedrite and Boulder Opal 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.