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Andradite
Andradite

Annabergite
Annabergite



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Andradite
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Annabergite

Andradite and Annabergite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.70-4.10
Conchoidal, Uneven
none
6.5-7
Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
 
Sectile
-
-
3.07
-
Perfect on {010}, indistinct on {100} and {102}
2
Ni3(AsO4)2•8(H2O)

Andradite and Annabergite Chemical Formula

While comparing Andradite and Annabergite 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 Andradite and Annabergite chemical formula.

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Andradite and Annabergite Specific Gravity

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