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Phosphosiderite
Phosphosiderite

Heliotrope
Heliotrope



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Phosphosiderite
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Heliotrope

Phosphosiderite and Heliotrope Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous
1.2 Pleochroism
Pale rose-red carmine-red colorlessAnthony et al
Not Available
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
Not Available
1.5 Refractive Index
1.692-1.739
1.53-1.54
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.240
0.004
1.9 Clarity
Transparent
Not Available

Phosphosiderite and Heliotrope Optic Character

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

Phosphosiderite and Heliotrope Transparency

Similar to their colors, Phosphosiderite and Heliotrope 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, Phosphosiderite is Transparent while Phosphosiderite is Transparent in appearance.