Poldervaartite and Goshenite Physical Properties

Poldervaartite

Goshenite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.912.60-2.90

1 7.18

1.5 Fracture

Handbook of mineralogy (2001)

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

3,1 basal

1.7 Mohs Hardness

Not Available7.5-8

2 10

1.8 Chemical Composition

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

Be₃Al₂SiO₆

Poldervaartite and Goshenite Chemical Formula

While comparing Poldervaartite and Goshenite 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 Poldervaartite and Goshenite chemical formula.

Chemical formula of Poldervaartite- (Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Goshenite- Be₃Al₂SiO₆

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Poldervaartite and Goshenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Poldervaartite and Goshenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Poldervaartite and Goshenite Optical Properties during the identification of gemstone. Specific gravity of Poldervaartite is 2.60-2.90 whereas that of Goshenite is 2.60-2.90.