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Optic Character
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Biaxial/+
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Handbook of mineralogy (2001)
OpaqueAnthony et al
Translucent
Transparent
TransparentMichael OâDonoghue
TransparentUlrich Henn and Claudio C. Milisenda
TransparentWalter Schumann
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31 Gemstones Found
Gemstones
Dispersion
Specific Gravity
Mohs Hardness
Refractive Index
Optic Character
Talisman
Cassiterite
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0.07
6.86-7.03
6-7
1.990-2.105
Not Available
Not Available
Pollucite
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0.01
2.86-2.94
6.5-7
1.517-1.525
Not Available
Not Available
Anhydrite
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0.01
2.90-2.98
3.5
1.570-1.614
Not Available
Not Available
Bytownite
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0.01
2.72-2.75
6-6.5
1.561-1.583
Not Available
Not Available
Leucite
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0.01
2.45-2.50
5.5-6
1.504-1.510
Not Available
Not Available
Montebrasite
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Not Available
2.98-3.10
5.5-6
1.578-1.646
Not Available
Not Available
Milk Opal
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Not Available
1.98-2.50
5.5-6.5
1.37-1.52
Not Available
Not Available
Milarite
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Not Available
2.52-2.60
5.5-6
1.529-1.560
Not Available
Not Available
Londonite
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Not Available
3.34
Not Available
Not Available
Not Available
Not Available
Ivory
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None
1.70-2.00
2-3
1.535-1.570
Not Available
Not Available
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List of All Gemstones
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Chrome Tremolite
Astrology
|
Physica...
|
Optical...
|
Benefits
Hbnerite
Astrology
|
Physica...
|
Optical...
|
Benefits
Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
» More List of All Gemstones
Gemstone Comparison
»More
Chrome Tremolite Vs Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
Hbnerite Vs Kmmererite
Astrology
|
Physica...
|
Optical...
|
Benefits
Chrome Tremolite Vs Hbnerite
Astrology
|
Physica...
|
Optical...
|
Benefits
» More Gemstone Comparison