Ammolite and Howlite Physical Properties

Ammolite

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

2.75-2.802.45-2.58

1 7.18

1.5 Fracture

Uneven, Granular

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

1.6 Cleavage

no true cleavage

None

1.7 Mohs Hardness

43-3.5

2 10

1.8 Chemical Composition

Not Available

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

Ammolite and Howlite Chemical Formula

While comparing Ammolite 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 Ammolite and Howlite 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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Ammolite and Howlite Specific Gravity

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