Kyanite and Phosphophyllite Physical Properties

Kyanite

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

3.53-3.653.07-3.13

1 7.18

1.5 Fracture

Splintery, Brittle, Metallic

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

1.6 Cleavage

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

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

1.7 Mohs Hardness

4-73-3.5

2 10

1.8 Chemical Composition

Not Available

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

Kyanite and Phosphophyllite Chemical Formula

While comparing Kyanite 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 Kyanite and Phosphophyllite 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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Kyanite and Phosphophyllite Specific Gravity

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