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Fire Agate
Fire Agate

Black Opal
Black Opal



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Fire Agate
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Black Opal

Fire Agate and Black Opal Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.60-2.64
Uneven, Splintery, Conchoidal
Absent
6.5-7
SiO 2Arthur Thomas , Gemstones (2009)
 
-
-
-
1.97-2.22
Conchoidal
None
6-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.

Fire Agate and Black Opal Chemical Formula

While comparing Fire Agate and Black Opal physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Fire Agate and Black Opal chemical formula.

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Fire Agate and Black Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Fire Agate and Black Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Fire Agate Vs Black Opal during the identification of gemstone. Specific gravity of Fire Agate is whereas that of Black Opal is .