Phosphophyllite and Cordierite Physical Properties

Phosphophyllite

Cordierite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.07-3.132.57-2.66

1 7.18

1.5 Fracture

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

Subconchoidal, Conchoidal, Brittle

1.6 Cleavage

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

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

1.7 Mohs Hardness

3-3.57-7.5

2 10

1.8 Chemical Composition

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

Mg2Al4Si5O18

Phosphophyllite and Cordierite Chemical Formula

While comparing Phosphophyllite and Cordierite 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 Phosphophyllite and Cordierite chemical formula.

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

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Phosphophyllite and Cordierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphophyllite and Cordierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphophyllite and Cordierite Optical Properties during the identification of gemstone. Specific gravity of Phosphophyllite is 2.57-2.66 whereas that of Cordierite is 2.57-2.66.