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Hollandite
Hollandite

Calcite
Calcite



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Hollandite
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Calcite

Hollandite and Calcite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Pearly
1.2 Pleochroism
Weak.
NilArthur Thomas
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Transparent, Translucent
1.5 Refractive Index
Not Available
1.486-1.658
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Trigonal
1.8 Birefringence
Not Available
0.154-0.174
1.9 Clarity
Not Available
Transparent

Hollandite and Calcite Optic Character

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

Hollandite and Calcite Transparency

Similar to their colors, Hollandite and Calcite 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, Hollandite is Not Available while Hollandite is Not Available in appearance.