Bertrandite and Wardite Physical Properties

Bertrandite

Wardite

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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

2.59-2.602.81

1 7.18

1.5 Fracture

Brittle, Metallic, Brittle, Metallic

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{001} Perfect, {110} Distinct, {101} Distinct

{001} Perfect

1.7 Mohs Hardness

6-74.5-5

2 10

1.8 Chemical Composition

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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

Bertrandite and Wardite Chemical Formula

While comparing Bertrandite and Wardite 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 Bertrandite and Wardite chemical formula.

Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Wardite- NaAl 3(PO 4) 2(OH) 4 · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Bertrandite and Wardite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Bertrandite and Wardite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Bertrandite and Wardite Optical Properties during the identification of gemstone. Specific gravity of Bertrandite is 2.81 whereas that of Wardite is 2.81.