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Idocrase
Idocrase

Bastnasite
Bastnasite



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Idocrase
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Bastnasite

Idocrase and Bastnasite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Greasy, Pearly
1.2 Pleochroism
Not Available
Faint
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.67-1.761.717-1.722
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
tetragonal
Hexagonal
1.8 Birefringence
Not Available0.100
Achroite
0 0.296
1.9 Clarity
Color grading system
TransparentUlrich Henn and Claudio C. Milisenda

Idocrase and Bastnasite Optic Character

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

Idocrase and Bastnasite Transparency

Similar to their colors, Idocrase and Bastnasite 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, Idocrase is Not Available while Idocrase is Not Available in appearance.