Andesine and Phosphosiderite Optical Properties

Andesine

Phosphosiderite

Add ⊕

1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

colorless.

Pale rose-red carmine-red colorlessAnthony et al

1.3 Dispersion

0.70NA

0.007 1

1.4 Transparency

Transparent, Translucent, Transparent to translucent

Transparent

1.5 Refractive Index

1.543-1.5641.692-1.739

1 3.25

1.6 Optic Character

Biaxial/+

Not Available

1.7 Crystal System

Triclinic

Not Available

1.8 Birefringence

0.007-0.0110.240

0 0.296

1.9 Clarity

Transparent

Andesine and Phosphosiderite Optic Character

Andesine and Phosphosiderite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Andesine 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 Andesine 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. Andesine has Biaxial/+ character.

Compare Red Gemstones

Andesine Vs Black Opal

Andesine Vs Bloodstone Heliotrope

Andesine Vs Blue John

Andesine and Phosphosiderite Transparency

Similar to their colors, Andesine 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, Andesine is Translucent, Transparent and Transparent to translucent while Andesine is Translucent, Transparent and Transparent to translucent in appearance.