Calcite Satin Spar and Watermelon Tourmaline Optical Properties

Calcite Satin Spar

Watermelon Tourmaline

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Not Available

1.3 Dispersion

NA0.02

0.007 1

1.4 Transparency

Transparent, Translucent

TransparentGemdat.org, Management Team (2012)

1.5 Refractive Index

1.486-1.6581.614-1.666

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Not Available

1.8 Birefringence

0.1720.014-0.040

0 0.296

1.9 Clarity

Transparent

TransparentGemdat.org

Calcite Satin Spar and Watermelon Tourmaline Optic Character

Calcite Satin Spar and Watermelon Tourmaline optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Calcite Satin Spar and Watermelon Tourmaline 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 Calcite Satin Spar and Watermelon Tourmaline 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.

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Calcite Satin Spar and Watermelon Tourmaline Transparency

Similar to their colors, Calcite Satin Spar and Watermelon Tourmaline 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, Calcite Satin Spar is Translucent and Transparent while Calcite Satin Spar is Translucent and Transparent in appearance.