Brazilianite and Howlite Physical Properties

Brazilianite

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

2.98-2.992.45-2.58

1 7.18

1.5 Fracture

Conchoidal, Gems

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

1.6 Cleavage

(010) Distinct to good

None

1.7 Mohs Hardness

5.53-3.5

2 10

1.8 Chemical Composition

NaAl 3(PO 4) 2(OH) 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Brazilianite and Howlite Chemical Formula

While comparing Brazilianite 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 Brazilianite and Howlite chemical formula.

Chemical formula of Brazilianite- NaAl 3(PO 4) 2(OH) 4Michael 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

Compare Green Gemstones

Brazilianite Vs Chalcopyrite

Brazilianite Vs Chlorastrolite

Brazilianite Vs Chlorapatite

Brazilianite and Howlite Specific Gravity

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