Hodgkinsonite and Howlite Physical Properties

Hodgkinsonite

Howlite

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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

4.06-4.082.45-2.58

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{???} Perfect

None

1.7 Mohs Hardness

4.5-53-3.5

2 10

1.8 Chemical Composition

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

Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Hodgkinsonite and Howlite Chemical Formula

While comparing Hodgkinsonite and Howlite 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 Howlite chemical formula.

Chemical formula of Hodgkinsonite- Mn2+ Zn 2SiO 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hodgkinsonite and Howlite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hodgkinsonite and Howlite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hodgkinsonite and Howlite Optical Properties during the identification of gemstone. Specific gravity of Hodgkinsonite is 2.45-2.58 whereas that of Howlite is 2.45-2.58.