Howlite and Chlorite group Physical Properties

Howlite

Chlorite group

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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

2.45-2.582.6-3.3

1 7.18

1.5 Fracture

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

Lamellar

1.6 Cleavage

None

Perfect 001

1.7 Mohs Hardness

3-3.52-2.5

2 10

1.8 Chemical Composition

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

Not Available

Howlite and Chlorite group Chemical Formula

While comparing Howlite and Chlorite group 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 Chlorite group chemical formula.

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

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Howlite and Chlorite group Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Chlorite group Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Chlorite group Optical Properties during the identification of gemstone. Specific gravity of Howlite is 2.6-3.3 whereas that of Chlorite group is 2.6-3.3.