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Brown Gemstones
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Optic Character


Clarity


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30 Gemstones Found
Gemstones
Dispersion
Specific Gravity
Mohs Hardness
Refractive Index
Optic Character
Talisman
Alabaster
Alabaster
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None
2.30
2
1.520-1.530
Not Available
Not Available
Allanite
Allanite
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Not Available
3.40-4.20
Not Available
1
Not Available
Not Available
Andalusite
Andalusite
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0.02
3.05-3.21
7.5
1.627-1.650
Not Available
Not Available
Anthophyllite
Anthophyllite
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Not Available
2.9-3.5
5.5-6
1.603-1.690
Biaxial/+
Not Available
Baddeleyite
Baddeleyite
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Not Available
5.5-6.0
6.5
2.13-2.20
Not Available
Not Available
Cerussite
Cerussite
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0.06
6.46-6.57
3-3.5
1.803-2.078
Not Available
Not Available
Epidote
Epidote
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0.03
3.25-3.50
6-7
1.729-1.768
Not Available
Not Available
Eudialyte
Eudialyte
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Not Available
2.74-3.00
5-5.5
1.591-1.633
Not Available
Not Available
Not Available
3.25-3.28
6.5-7
1.674-1.693
Not Available
Not Available
Fire Agate
Fire Agate
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None
2.60-2.64
6.5-7
1.530-1.543
Not Available
Not Available
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