Hexagonite and Howlite Physical Properties

Hexagonite

Howlite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.98-3.032.45-2.58

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

[110] perfect; [010] distinct

None

1.7 Mohs Hardness

5-63-3.5

2 10

1.8 Chemical Composition

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

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

Hexagonite and Howlite Chemical Formula

While comparing Hexagonite 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 Hexagonite and Howlite chemical formula.

Chemical formula of Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.
Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Hexagonite and Howlite Specific Gravity

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