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Agate Opal
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Agate Opal
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Arfvedsonite
Agate Opal
Arfvedsonite
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Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.7 Durability
Not Available
Not Available
1.10 Specific Gravity
1.98-2.50
3.3-3.5
Amber
▶
⊕
1
7.18
1.18 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001)
Uneven, Brittle, Metallic, Brittle, Metallic
1.21 Cleavage
Not Available
Perfect on [110]
1.24 Mohs Hardness
5.5-6.5
5-6
Amber
▶
⊕
2
10
1.26 Chemical Composition
SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)
NaNa2(Fe++4Fe+++)Si8O22(OH)2
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