Chrysoprase and Hematite Optical Properties

Chrysoprase

Hematite

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1 Optical Properties

1.1 Luster

Vitreous, Vitreous, Waxy

Not Available

1.2 Pleochroism

AbsentWalter Schumann

O = brownish red; E = yellowish red

1.3 Dispersion

Albite Optical ..

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None

Rank: N/A (Overall)▶

Not Available

Rank: N/A (Overall)▶

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Fluorite Optical Properties

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0.044 (Anglesite Opt..)

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1.4 Transparency

Translucent, Translucent, Opaque, Translucent to nearly opaque

OpaqueHerve Nicolas Lazzarelli, Blue Chart Gem Identification (2010) More from other references

1.5 Refractive Index

1.530-1.543

2.690-3.220

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

1.8 Birefringence

0.004

0.280

1.9 Clarity

Translucent

OpaqueHerve Nicolas Lazzarelli

Chrysoprase and Hematite Optic Character

Chrysoprase and Hematite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Chrysoprase and Hematite 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 Chrysoprase and Hematite 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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Chrysoprase and Hematite Transparency

Similar to their colors, Chrysoprase and Hematite 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, Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque while Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque in appearance.