Shattuckite and Howlite Physical Properties

Shattuckite

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

3.80-4.152.45-2.58

1 7.18

1.5 Fracture

Uneven, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

perfect along [010] and [100]

None

1.7 Mohs Hardness

3.5-43-3.5

2 10

1.8 Chemical Composition

Cu 5(SiO 3) 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

Shattuckite and Howlite Chemical Formula

While comparing Shattuckite 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 Shattuckite and Howlite chemical formula.

Chemical formula of Shattuckite- Cu 5(SiO 3) 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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Shattuckite and Howlite Specific Gravity

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