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Phosphosiderite
Phosphosiderite

Lawsonite
Lawsonite



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Phosphosiderite
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Lawsonite

Phosphosiderite and Lawsonite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Greasy

Pleochroism

Pale rose-red carmine-red colorlessAnthony et al
Weak

Dispersion

0.040.01
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.692-1.7391.672-1.676
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.2400.019-0.021
0 0.296
👆🏻

Clarity

Transparent
-

Phosphosiderite and Lawsonite Optic Character

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

Similar to their colors, Phosphosiderite and Lawsonite 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.