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Anglesite
Anglesite

Bertrandite
Bertrandite



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Anglesite and Bertrandite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Vitreous
1.2 Pleochroism
NilArthur Thomas
none.
1.3 Dispersion
Albite Optical ..
0.04
Rank: 10 (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Transparent
TransparentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.877-1.894
1.583-1.614
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21
1.8 Birefringence
0.017
Not Available
1.9 Clarity
Transparent
TransparentAnthony et al

Anglesite and Bertrandite Optic Character

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

Anglesite and Bertrandite Transparency

Similar to their colors, Anglesite 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, Anglesite is Transparent while Anglesite is Transparent in appearance.

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