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Bertrandite
Bertrandite

Shattuckite
Shattuckite



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Bertrandite
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Shattuckite

Bertrandite and Shattuckite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Silky
1.2 Pleochroism
none.
X = very pale blue; Y = pale blue; Z = deep blue
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentAnthony et al, Handbook of mineralogy (2001)
Translucent
1.5 Refractive Index
1.583-1.6141.752-1.815
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
Orthorhombic
1.8 Birefringence
Not Available0.063
Achroite
0 0.296
1.9 Clarity
TransparentAnthony et al
Translucent

Bertrandite and Shattuckite Optic Character

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

Bertrandite and Shattuckite Transparency

Similar to their colors, Bertrandite and Shattuckite 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.