Chondrodite and Bertrandite Optical Properties

Chondrodite

Bertrandite

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1 Optical Properties

1.1 Luster

Vitreous, Greasy

Vitreous

1.2 Pleochroism

X golden yellow to orange

none.

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Transparent, Translucent

TransparentAnthony et al, Handbook of mineralogy (2001)

1.5 Refractive Index

1.589-1.6701.583-1.614

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21

1.8 Birefringence

0.027-0.032Not Available

0 0.296

1.9 Clarity

Transparent

TransparentAnthony et al

Chondrodite and Bertrandite Optic Character

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

Similar to their colors, Chondrodite and Bertrandite 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, Chondrodite is Translucent and Transparent while Chondrodite is Translucent and Transparent in appearance.