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Howlite
Howlite

Scolecite
Scolecite



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Howlite
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Scolecite

Howlite and Scolecite Optical Properties

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1 Optical Properties
1.1 Luster
Vitreous
Vitreous, Silky, Fibrous
1.2 Pleochroism
NilArthur Thomas
X: colourless Y: colourless Z: colourless
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Translucent
1.5 Refractive Index
1.583-1.6081.512-1.523
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
monoclinic
1.8 Birefringence
0.0190.011
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Howlite and Scolecite Optic Character

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

Howlite and Scolecite Transparency

Similar to their colors, Howlite and Scolecite 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, Howlite is Gemmological Tables (2004) More from other references while Howlite is Gemmological Tables (2004) More from other references in appearance.