Howlite and Hauyne Physical Properties

Howlite

Hauyne

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Gelatinises in acids

1.3 Durability

Not Available

1.4 Specific Gravity

2.45-2.582.4-2.5

1 7.18

1.5 Fracture

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

Uneven, Conchoidal, Brittle

1.6 Cleavage

None

Distinct on {110}

1.7 Mohs Hardness

3-3.55-6

2 10

1.8 Chemical Composition

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

(Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

Howlite and Hauyne Chemical Formula

While comparing Howlite and Hauyne 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 Howlite and Hauyne chemical formula.

Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Hauyne- (Na,Ca)4-8Al6Si6(O,S)24(SO4,Cl)1-2

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Howlite and Hauyne Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Hauyne Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Hauyne Optical Properties during the identification of gemstone. Specific gravity of Howlite is 2.4-2.5 whereas that of Hauyne is 2.4-2.5.