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Pyrope Almandine
Pyrope Almandine

Actinolite
Actinolite



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Pyrope Almandine
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Actinolite

Pyrope Almandine and Actinolite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
AbsentWalter Schumann
moderate
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentGemdat.org, Management Team (2012)
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.73-1.771.613-1.628
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
Not Available0.0250-0.0270
Achroite
0 0.296
1.9 Clarity
TransparentGemdat.org
TransparentUlrich Henn and Claudio C. Milisenda

Pyrope Almandine and Actinolite Optic Character

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

Pyrope Almandine and Actinolite Transparency

Similar to their colors, Pyrope Almandine and Actinolite 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, Pyrope Almandine is Management Team (2012) and TransparentGemdat.org while Pyrope Almandine is Management Team (2012) and TransparentGemdat.org in appearance.