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Optic Character
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Biaxial/+
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Color grading system
Gemmological Tables (2004)
Gemmological Tables (2004) More from other references
Gems
Handbook of mineralogy (2001)
Opaque
OpaqueAnthony et al
OpaqueHerve Nicolas Lazzarelli
Translucent
TranslucentWalter Schumann
Transparent
TransparentAnthony et al
TransparentGemdat.org
TransparentMichael OâDonoghue
TransparentUlrich Henn and Claudio C. Milisenda
TransparentWalter Schumann
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Dispersion
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100+ Gemstones Found
Gemstones
?
The colors created by dispersion produce little fires like visualizations within the gem, thus create a "fire" effect.
Dispersion
?
Its a measure of heaviness of the gemstone, thus more the gravity, heavier is the stone.
Specific Gravity
?
Its the gem’s ability to resist scratching of its surface.
Mohs Hardness
?
Gemstones with a higher RI seem more brilliant since more light is returned back out of the top or crown of the stone.
Refractive Index
?
Optical properties influence the cleavage in the gemstone crystal. This is an important parameter while shaping a gemstone.
Optic Character
?
Talisman are believed to bring good luck to one who possesses it. Whose fortune do this gemstone change?
Talisman
Cassiterite
Astrology
|
Physical ...
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Optical P...
|
Benefits
Add to compare
0.07
6.86-7.03
6-7
1.990-2.105
Not Available
Not Available
Dravite
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Add to compare
0.02
3.03-3.18
7-7.5
1.614-1.666
Not Available
Not Available
Rubellite
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Add to compare
0.02
3.01-3.06
7-7.5
1.614-1.666
Not Available
Not Available
Watermelon Tourmaline
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Add to compare
0.02
2.90-3.40
7-7.5
1.614-1.666
Not Available
Not Available
Spodumene
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Add to compare
0.02
3.15-3.21
6-7
1.657-1.681
Not Available
Not Available
Datolite
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Add to compare
0.02
2.90-3.00
5-5.5
1.621-1.675
Not Available
Not Available
Pollucite
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Add to compare
0.01
2.86-2.94
6.5-7
1.517-1.525
Not Available
Not Available
Goshenite
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Add to compare
0.01
2.60-2.90
7.5-8
1.562-1.615
Not Available
Not Available
Anhydrite
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Add to compare
0.01
2.90-2.98
3.5
1.570-1.614
Not Available
Not Available
Rutilated Quartz
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Add to compare
0.01
2.65
7
1.544-1.553
Not Available
Not Available
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List of All Gemstones
»More
Chrome Tremolite
Astrology
|
Physica...
|
Optical...
|
Benefits
Hbnerite
Astrology
|
Physica...
|
Optical...
|
Benefits
Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
» More List of All Gemstones
Gemstone Comparison
»More
Hbnerite Vs Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
Chrome Tremolite Vs Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
Chrome Tremolite Vs Hbnerite
Astrology
|
Physica...
|
Optical...
|
Benefits
» More Gemstone Comparison
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