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Jet
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Sapphire
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Gemstones
Gems for Taurus
Gems for Gemini
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Organic
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Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
Physical Properties
Tenacity
Solubility
Durability
Specific Gravity
Fracture
Cleavage
Mohs Hardness
Chemical Composition
-
-
-
1.19-1.35
ConchoidalWalter Schumann
None
2.5-4
C
-
insoluble
-
3.95-4.03
Uneven
None, but may exhibit parting
9
Al
2
O
3
Compare Organic
» More
Jet Vs Bronzite
Jet Vs Boulder Opal
Jet Vs Bloodstone Heliotrope
» More Compare Organic
Organic
» More
Pearl
Abalone
Precious coral
Coral
Bronzite
Boulder Opal
» More Organic
Organic
» More
Bloodstone Heliotrope
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Black Opal
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Binghamite
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Compare Organic
» More
Sapphire Vs Abalone
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Sapphire Vs Precious coral
Astrology
|
Physical ...
|
Optical P...
|
Benefits
Sapphire Vs Coral
Astrology
|
Physical ...
|
Optical P...
|
Benefits