Cordierite and Phosphophyllite Physical Properties

Cordierite

Phosphophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.57-2.663.07-3.13

1 7.18

1.5 Fracture

Subconchoidal, Conchoidal, Brittle

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

1.6 Cleavage

Fair on {100}, poor on {001} and {010}

{100} Perfect, {010} Distinct, {102} Distinct

1.7 Mohs Hardness

7-7.53-3.5

2 10

1.8 Chemical Composition

Mg2Al4Si5O18

Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Cordierite and Phosphophyllite Chemical Formula

While comparing Cordierite and Phosphophyllite 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 Cordierite and Phosphophyllite chemical formula.

Chemical formula of Cordierite- Mg2Al4Si5O18
Chemical formula of Phosphophyllite- Zn 2(Fe2+ ,Mn2+ )(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Cordierite and Phosphophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Cordierite and Phosphophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Cordierite and Phosphophyllite Optical Properties during the identification of gemstone. Specific gravity of Cordierite is 3.07-3.13 whereas that of Phosphophyllite is 3.07-3.13.