Actinolite and Lepidocrocite Optical Properties

Actinolite

Lepidocrocite

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

moderate

Strong; X = colorless to yellow; Y = orange

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references

Not Available

1.5 Refractive Index

1.613-1.6281.940

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Orthorhombic

1.8 Birefringence

0.0250-0.0270Not Available

0 0.296

1.9 Clarity

TransparentUlrich Henn and Claudio C. Milisenda

Not Available

Actinolite and Lepidocrocite Optic Character

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

Similar to their colors, Actinolite and Lepidocrocite 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, Actinolite is Gemmological Tables (2004) More from other references and TransparentUlrich Henn and Claudio C. Milisenda while Actinolite is Gemmological Tables (2004) More from other references and TransparentUlrich Henn and Claudio C. Milisenda in appearance.