Hodgkinsonite and Pargasite Physical Properties

Hodgkinsonite

Pargasite

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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

4.06-4.083.04-3.26

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Metallic

Splintery, Brittle, Uneven

1.6 Cleavage

{???} Perfect

{110} perfect

1.7 Mohs Hardness

4.5-55-6

2 10

1.8 Chemical Composition

Mn2+ Zn 2SiO 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Hodgkinsonite and Pargasite Chemical Formula

While comparing Hodgkinsonite and Pargasite 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 Hodgkinsonite and Pargasite chemical formula.

Chemical formula of Hodgkinsonite- Mn2+ Zn 2SiO 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pargasite- NaCa 2(Mg 4Al)Si 6Al 2O 22(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Hodgkinsonite and Pargasite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hodgkinsonite and Pargasite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hodgkinsonite and Pargasite Optical Properties during the identification of gemstone. Specific gravity of Hodgkinsonite is 3.04-3.26 whereas that of Pargasite is 3.04-3.26.