Apatite and Moss Agate Optical Properties

Apatite

Moss Agate

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

Blue stones – strong

AbsentWalter Schumann

1.3 Dispersion

0.01None

0.007 1

1.4 Transparency

Gemmological Tables (2004) More from other references

TranslucentWalter Schumann, Gemstones of the world (2001)

1.5 Refractive Index

1.628-1.6511.530-1.540

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Hexagonal

Not Available

1.8 Birefringence

0.002-0.0080.004

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

TranslucentWalter Schumann

Apatite and Moss Agate Optic Character

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

Similar to their colors, Apatite and Moss Agate 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, Apatite is Gemmological Tables (2004) More from other references while Apatite is Gemmological Tables (2004) More from other references in appearance.