Opal and Pyrope Almandine Optical Properties

Opal

Pyrope Almandine

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1 Optical Properties

1.1 Luster

Vitreous, Pearly

Not Available

1.2 Pleochroism

None

AbsentWalter Schumann

1.3 Dispersion

Albite Optical ..

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None

Rank: N/A (Overall)▶

0.02

Rank: 16 (Overall)▶

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Fluorite Optical Properties

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0.044 (Anglesite Opt..)

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1.4 Transparency

Transparent, Translucent, Transparent to translucent

TransparentGemdat.org, Management Team (2012)

1.5 Refractive Index

1.37-1.52

1.73-1.77

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

Not Available

1.9 Clarity

Transparent

TransparentGemdat.org

Opal and Pyrope Almandine Optic Character

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

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Opal and Pyrope Almandine Transparency

Similar to their colors, Opal and Pyrope Almandine 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, Opal is Translucent, Transparent and Transparent to translucent while Opal is Translucent, Transparent and Transparent to translucent in appearance.

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