Snowflake Obsidian and Sillimanite Optical Properties

Snowflake Obsidian

Sillimanite

Add ⊕

1 Optical Properties

1.1 Luster

Not Available

Vitreous, Subadamantine, Silky

1.2 Pleochroism

Not Available

Colourless to pale brown to yellow

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent

1.5 Refractive Index

1.450-1.5501.653-1.685

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

Orthorhombic

1.8 Birefringence

Not Available0.020-0.022

0 0.296

1.9 Clarity

Transparent

Snowflake Obsidian and Sillimanite Optic Character

Snowflake Obsidian and Sillimanite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Snowflake Obsidian and Sillimanite 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 Snowflake Obsidian and Sillimanite 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 Black Gemstones

Snowflake Obsidian Vs Dinosaur Bone

Snowflake Obsidian Vs Chrome Diopside

Snowflake Obsidian Vs Chrysanthemum Stone

Snowflake Obsidian and Sillimanite Transparency

Similar to their colors, Snowflake Obsidian and Sillimanite 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, Snowflake Obsidian is Translucent and Transparent while Snowflake Obsidian is Translucent and Transparent in appearance.