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Sard
☒
Prehnite
☒
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Gemstones
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Organic
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Sard
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Prehnite
Sard
Prehnite
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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
-
-
-
2.58-2.63
Conchoidal
None
6.5-7
SiO 2Ulrich Henn and Claudio C.
Brittle
-
-
2.80-2.95
Uneven
Distinct on [001]
6-6.5
Ca
2
Al
2
Si
3
O
12
(OH)
Compare Blue Gemstones
Sard Vs Sillimanite
Sard Vs Star Ruby
Sard Vs Star Sapphire
Blue Gemstones
Sardonyx
Scorzalite
Serendibite
Shattuckite
Sillimanite
Star Ruby
Star Sapphire
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Starlite
Astrology
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Physical ...
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Strontium Titanate
Astrology
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Physical ...
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Prehnite Vs Scorzalite
Astrology
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Prehnite Vs Serendibite
Astrology
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Physical ...
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Prehnite Vs Shattuckite
Astrology
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Physical ...
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Optical P...
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Benefits