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Nepheline
Nepheline
☒

Apatite
Apatite
☒



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Nepheline
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Apatite
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Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Greasy
-
0.01
Transparent, Translucent
1.529-1.547
-
Hexagonal
0.003-0.004
Transparent
 
Vitreous
Blue stones – strong
0.01
-
1.628-1.651
-
Hexagonal
0.002-0.008
TransparentUlrich Henn and Claudio C. Milisenda

Compare Red Gemstones

Red Gemstones

Rhodolite
Rhodolite
Rutile
Rutile
Sarcopside
Sarcopside
Apatite
Pyrope
Apatite Vs Pyrope
Apatite
Pyrope Spessartine
Apatite Vs Pyrope Spessartine
Apatite
Pyroxmangite
Apatite Vs Pyroxmangite

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