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Goethite
Goethite

Pleonaste
Pleonaste



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Goethite
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Goethite and Pleonaste Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Not Available
1.2 Pleochroism
VisibleArthur Thomas
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemstones (2009)
Gemmological Tables (2004)
1.5 Refractive Index
2.26-2.3981.780
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.138Not Available
Achroite
0 0.296
1.9 Clarity
Gemstones (2009)
Gemmological Tables (2004)

Goethite and Pleonaste Optic Character

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

Goethite and Pleonaste Transparency

Similar to their colors, Goethite and Pleonaste 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, Goethite is Gemstones (2009) while Goethite is Gemstones (2009) in appearance.