Bertrandite and Dinosaur Bone Optical Properties

Bertrandite

Dinosaur Bone

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

none.

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

TransparentAnthony et al, Handbook of mineralogy (2001)

Not Available

1.5 Refractive Index

1.583-1.614Not Available

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

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

Not Available

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

TransparentAnthony et al

Not Available

Bertrandite and Dinosaur Bone Optic Character

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

Similar to their colors, Bertrandite and Dinosaur Bone 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, Bertrandite is Handbook of mineralogy (2001) and TransparentAnthony et al while Bertrandite is Handbook of mineralogy (2001) and TransparentAnthony et al in appearance.