Rutile and Howlite Physical Properties

Rutile

Howlite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Insoluble in acids

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.20-4.302.45-2.58

1 7.18

1.5 Fracture

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

{110} good, 100 moderate, parting on {092} and {011}

None

1.7 Mohs Hardness

6-6.53-3.5

2 10

1.8 Chemical Composition

TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Rutile and Howlite Chemical Formula

While comparing Rutile 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 Rutile and Howlite chemical formula.

Chemical formula of Rutile- TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Howlite- Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Rutile and Howlite Specific Gravity

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