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Gibbsite
Gibbsite

Boulder Opal
Boulder Opal



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Gibbsite
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Boulder Opal

Gibbsite and Boulder Opal Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Pearly
Not Available
1.2 Pleochroism
colorless.
AbsentWalter Schumann
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Transparent, Translucent
1.5 Refractive Index
Not Available
1.370-1.470
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
Not Available
Not Available
1.9 Clarity
Not Available
Transparent

Gibbsite and Boulder Opal Optic Character

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

Gibbsite and Boulder Opal Transparency

Similar to their colors, Gibbsite 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, Gibbsite is Not Available while Gibbsite is Not Available in appearance.