Beryl and Grandidierite Optical Properties

Beryl

Grandidierite

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous, Vitreous, Resinous

Vitreous, Pearly

1.2 Pleochroism

Weak to distinct

visible

1.3 Dispersion

Albite Optical ..

⊕

▶

▼

0.01

Rank: 26 (Overall)▶

Not Available

Rank: N/A (Overall)▶

▲

Fluorite Optical Properties

⊕

▶

0.044 (Anglesite Opt..)

◀ ▶ ADD ⊕

1.4 Transparency

Transparent, Transparent to opaque

Gemmological Tables (2004) More from other references

1.5 Refractive Index

1.560-1.604

1.578-1.639

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

Orthorhombic

1.8 Birefringence

0.0040-0.0070

0.037-0.039

1.9 Clarity

Transparent

Gemmological Tables (2004) More from other references

Beryl and Grandidierite Optic Character

Beryl and Grandidierite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Beryl and Grandidierite 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 Beryl and Grandidierite 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 Blue Gemstones

Beryl Vs Boulder Opal

Beryl Vs Boleite

Beryl Vs Brucite

Beryl and Grandidierite Transparency

Similar to their colors, Beryl and Grandidierite 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, Beryl is Transparent and Transparent to opaque while Beryl is Transparent and Transparent to opaque in appearance.

Blue Gemstones

Black Opal

Bloodstone Heliotrope

Blue Beryl Maxixe

Blue John

Boleite

Boulder Opal