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Pectolite and Dravite Physical Properties


Dravite and Pectolite Physical Properties


Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.74-2.90   
3.03-3.18   

Fracture
Uneven, Gemstones (2009), Splintery   
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle   

Cleavage
Perfect on {100} and {001}   
{???} Indistinct   

Mohs Hardness
4.5-5   
7-7.5   

Chemical Composition
Ca 2NaHSi 3O 9Ulrich Henn and Claudio C.   
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)   

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Pectolite and Dravite Chemical Formula

While comparing Pectolite and Dravite 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 Pectolite and Dravite chemical formula.

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Pectolite and Dravite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pectolite and Dravite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pectolite and Dravite Optical Properties during the identification of gemstone. Specific gravity of Pectolite is 3.03-3.18 whereas that of Dravite is 3.03-3.18.

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