×

Unakite
Unakite

Staurolite
Staurolite



ADD
Compare
X
Unakite
X
Staurolite

Unakite and Staurolite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Resinous
1.2 Pleochroism
Not Available
X = colorless; Y = pale yellow; Z = golden yellow
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemstones of the world (2001)
Blue Chart Gem Identification (2010) More from other references
1.5 Refractive Index
1.5251.736-1.762
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
monoclinic
1.8 Birefringence
Not Available0.009-0.015
Achroite
0 0.296
1.9 Clarity
Gemstones of the world (2001)
Blue Chart Gem Identification (2010) More from other references

Unakite and Staurolite Optic Character

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

Unakite and Staurolite Transparency

Similar to their colors, Unakite and Staurolite 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, Unakite is Gemstones of the world (2001) while Unakite is Gemstones of the world (2001) in appearance.