Phosphophyllite and Kyanite Physical Properties

Phosphophyllite

Kyanite

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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

3.07-3.133.53-3.65

1 7.18

1.5 Fracture

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

Splintery, Brittle, Metallic

1.6 Cleavage

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

[100] perfect [010] imperfect with 79° angle between

1.7 Mohs Hardness

3-3.54-7

2 10

1.8 Chemical Composition

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

Not Available

Phosphophyllite and Kyanite Chemical Formula

While comparing Phosphophyllite and Kyanite 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 Kyanite chemical formula.

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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Phosphophyllite and Kyanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphophyllite and Kyanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphophyllite and Kyanite Optical Properties during the identification of gemstone. Specific gravity of Phosphophyllite is 3.53-3.65 whereas that of Kyanite is 3.53-3.65.