×

Goethite
Goethite

Indicolite Blue Tourmaline
Indicolite Blue Tourmaline



ADD
Compare
X
Goethite
X
Indicolite Blue Tourmaline

Goethite and Indicolite Blue Tourmaline Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Not Available
1.2 Pleochroism
VisibleArthur Thomas
Strong: dark blue light blueWalter Schumann
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemstones (2009)
Transparent, Translucent
1.5 Refractive Index
2.26-2.3981.614-1.666
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.1380.014-0.040
Achroite
0 0.296
1.9 Clarity
Gemstones (2009)
Transparent

Goethite and Indicolite Blue Tourmaline Optic Character

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

Similar to their colors, Goethite and Indicolite Blue Tourmaline 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.