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Actinolite
Actinolite

Prasiolite
Prasiolite



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Actinolite
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Prasiolite

Actinolite and Prasiolite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
moderate
Very weak: light green pale greenWalter Schumann
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references
Transparent, Translucent
1.5 Refractive Index
1.613-1.6281.544-1.553
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Trigonal
1.8 Birefringence
0.0250-0.02700.009
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Actinolite and Prasiolite Optic Character

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

Actinolite and Prasiolite Transparency

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