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Fluorapatite
Fluorapatite

Phosphosiderite
Phosphosiderite



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Fluorapatite
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Phosphosiderite

Fluorapatite and Phosphosiderite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Resinous
Vitreous
1.2 Pleochroism
Weak to strong if coloreD
Pale rose-red carmine-red colorlessAnthony et al
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.631-1.6501.692-1.739
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Not Available
1.8 Birefringence
Not Available0.240
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Fluorapatite and Phosphosiderite Optic Character

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

Fluorapatite and Phosphosiderite Transparency

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