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Herderite and Emerald Physical Properties


Emerald and Herderite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Hard   

Specific Gravity
2.90-3.02   
2.67-2.78   

Fracture
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle   
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Indistinct on {110}   
Imperfect on the [0001]   

Mohs Hardness
5-5.5   
7.5-8   

Chemical Composition
CaBePO 4(F,OH)Ulrich Henn and Claudio C.   
Be3Al2SiO6   

Optical Properties >>
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Herderite and Emerald Chemical Formula

While comparing Herderite and Emerald 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 Herderite and Emerald chemical formula.

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Herderite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Herderite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Herderite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.

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