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Esperite and Hurlbutite Physical Properties


Hurlbutite and Esperite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.28-4.42   
2.90   

Fracture
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic   
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal   

Cleavage
Distinct on [010] and [100] poor on [101]   
None   

Mohs Hardness
5-5.5   
6   

Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)   
CaBe 2(PO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Esperite and Hurlbutite Chemical Formula

While comparing Esperite and Hurlbutite 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 Esperite and Hurlbutite chemical formula.

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Esperite and Hurlbutite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Esperite and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Esperite and Hurlbutite Optical Properties during the identification of gemstone. Specific gravity of Esperite is 2.90 whereas that of Hurlbutite is 2.90.

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