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Linarite
Linarite

Dallasite
Dallasite



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Linarite
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Dallasite

Linarite and Dallasite Optical Properties

1 Optical Properties
1.1 Luster
Sub-Adamantine, Vitreous
Not Available
1.2 Pleochroism
X = pale blue; Y = blue; Z = Prussian blue
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Not Available
1.5 Refractive Index
1.809-1.8591.540
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
0.0500.008-0.010
Achroite
0 0.296
1.9 Clarity
Transparent
Not Available

Linarite and Dallasite Optic Character

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

Linarite and Dallasite Transparency

Similar to their colors, Linarite and Dallasite 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, Linarite is Transparent while Linarite is Transparent in appearance.