×

Phosphosiderite
Phosphosiderite

Zoisite
Zoisite



ADD
Compare
X
Phosphosiderite
X
Zoisite

Phosphosiderite and Zoisite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

Pale rose-red carmine-red colorlessAnthony et al
X = pale pink to red-violet; Y = nearly colorless to bright pink or deep blue; Z = pale yellow to yellow-green

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent, Opaque . May be translucent in thin backlit sections.

Refractive Index

1.692-1.7391.685-1.707
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.2400.006-0.018
0 0.296
👆🏻

Clarity

Transparent
Transparent

Phosphosiderite and Zoisite Optic Character

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

Similar to their colors, Phosphosiderite and Zoisite 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.