Howlite and Rutile Physical Properties

Howlite

Rutile

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Insoluble in acids

1.3 Durability

Not Available

1.4 Specific Gravity

2.45-2.584.20-4.30

1 7.18

1.5 Fracture

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

Uneven, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

None

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

1.7 Mohs Hardness

3-3.56-6.5

2 10

1.8 Chemical Composition

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

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

Howlite and Rutile Chemical Formula

While comparing Howlite and Rutile 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 Rutile chemical formula.

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

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Howlite and Rutile Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Rutile Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Rutile Optical Properties during the identification of gemstone. Specific gravity of Howlite is 4.20-4.30 whereas that of Rutile is 4.20-4.30.