Rosasite and Prehnite Optical Properties

Rosasite

Prehnite

Add ⊕

1 Optical Properties

1.1 Luster

Silky, Vitreous

Vitreous

1.2 Pleochroism

Strong: X = pale emerald green or colourless; Y = dark emerald green or pale blue; Z = dark emerald green or pale blue

AbsentWalter Schumann

1.3 Dispersion

NANone

0.007 1

1.4 Transparency

Not Available

Translucent

1.5 Refractive Index

1.672-1.6881.611-1.673

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Orthorhombic

1.8 Birefringence

0.139-0.1430.021-0.033

0 0.296

1.9 Clarity

Not Available

TranslucentHerve Nicolas Lazzarelli

Rosasite and Prehnite Optic Character

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

Rosasite Vs Amber

Rosasite Vs Lehsunia

Rosasite Vs Adamite

Rosasite and Prehnite Transparency

Similar to their colors, Rosasite and Prehnite 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, Rosasite is Not Available while Rosasite is Not Available in appearance.