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Pietersite
Pietersite

Hureaulite
Hureaulite



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Pietersite
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Hureaulite

Pietersite and Hureaulite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Greasy
1.2 Pleochroism
Not Available
Colorless yellow to pale rose reddish yellow to reddish brown.Anthony et al
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent
1.5 Refractive Index
1.54-1.561.647-1.667
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/c
1.8 Birefringence
Not Available0.012
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Pietersite and Hureaulite Optic Character

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

Pietersite and Hureaulite Transparency

Similar to their colors, Pietersite and Hureaulite 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, Pietersite is Not Available while Pietersite is Not Available in appearance.