Apache Tear and Apatite Optical Properties

Apache Tear

Apatite

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1 Optical Properties

1.1 Luster

Not Available

Vitreous

1.2 Pleochroism

Not Available

Blue stones – strong

1.3 Dispersion

NA0.01

0.007 1

1.4 Transparency

Not Available

Gemmological Tables (2004) More from other references

1.5 Refractive Index

Not Available1.628-1.651

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Amorphous

Hexagonal

1.8 Birefringence

Not Available0.002-0.008

0 0.296

1.9 Clarity

Not Available

TransparentUlrich Henn and Claudio C. Milisenda

Apache Tear and Apatite Optic Character

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

Similar to their colors, Apache Tear and Apatite 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, Apache Tear is Not Available while Apache Tear is Not Available in appearance.