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Goethite and Smoky Quartz Physical Properties


Smoky Quartz and Goethite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
HCl soluble   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
4.27-4.29   
2.65   

Fracture
Uneven, torn surfaces, (e.g. fractured metals)., Uneven, Gemstones (2009), torn surfaces, (e.g. fractured metals).   
Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)   

Cleavage
Perfect {010}   
{0110} Indistinct   

Mohs Hardness
5-5.5   
7   

Chemical Composition
FeO(OH)Arthur Thomas , Gemstones (2009)   
SiO2   

Optical Properties >>
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Goethite and Smoky Quartz Chemical Formula

While comparing Goethite and Smoky Quartz 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 Goethite and Smoky Quartz chemical formula.

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Goethite and Smoky Quartz Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Smoky Quartz Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite and Smoky Quartz Optical Properties during the identification of gemstone. Specific gravity of Goethite is 2.65 whereas that of Smoky Quartz is 2.65.

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