Home
Gemstones


Phosphosiderite and Mellite Optical Properties


Mellite and Phosphosiderite Optical Properties


Optical Properties

Luster
Vitreous   
Vitreous   

Pleochroism
Pale rose-red carmine-red colorlessAnthony et al   
Weak: yellowish brown yellowAnthony et al   

Dispersion
Not Available   
Not Available   

Transparency
Transparent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.692-1.739   
1.509-1.541   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
0.240   
0.030   

Clarity
Transparent   
TransparentUlrich Henn and Claudio C. Milisenda   

Benefits >>
<< Physical Properties

Phosphosiderite and Mellite Optic Character

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

Compare Blue Gemstones

Phosphosiderite and Mellite Transparency

Similar to their colors, Phosphosiderite and Mellite 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.

Blue Gemstones

Blue Gemstones


Compare Blue Gemstones