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Actinolite
Actinolite

Brookite
Brookite



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Actinolite
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Brookite

Actinolite and Brookite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Adamantine
1.2 Pleochroism
moderate
Very weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentUlrich Henn and Claudio C. Milisenda, Gemmological Tables (2004) More from other references
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.613-1.6282.583-2.741
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Orthorhombic
1.8 Birefringence
0.0250-0.02700.117
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Gemmological Tables (2004) More from other references

Actinolite and Brookite Optic Character

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

Similar to their colors, Actinolite and Brookite 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.