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Londonite
Londonite

Fayalite
Fayalite



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Londonite
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Fayalite

Londonite and Fayalite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Resinous
1.2 Pleochroism
Not Available
Faint
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TransparentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
Not Available1.827-1.879
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
Not Available0.042-0.051
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentAnthony et al

Londonite and Fayalite Optic Character

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

Londonite and Fayalite Transparency

Similar to their colors, Londonite and Fayalite 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, Londonite is Transparent while Londonite is Transparent in appearance.