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Bloodstone
Bloodstone

Spinel
Spinel



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Bloodstone
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Spinel

Bloodstone and Spinel Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Not Available
Absent
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Opaque
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.54-1.551.73
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Isometric
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Opaque
TransparentUlrich Henn and Claudio C. Milisenda

Bloodstone and Spinel Optic Character

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

Bloodstone and Spinel Transparency

Similar to their colors, Bloodstone and Spinel 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, Bloodstone is Opaque while Bloodstone is Opaque in appearance.